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找一篇有关阿司匹林的英语短文

2023-07-19 21:12:00
TAG: 英语
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cloudcone

Aspirin"s history is a lengthy one, from its discovery in the fifth century BC, to its use as a bartering tool in World War I, to its newly discovered benefits and uses.

A person could get a headache thinking about all of the detours aspirin has taken on the road to becoming today"s common, inexpensive, cure-all medication.

Aspirin"s roots are deep, and reach back to Hippocrates himself, the Greek father of modern medicine, who held the recipe for a pain reliever and fever reducer made from the bark and leaves of the willow tree. The key the Greek father of modern medicine held from sometime between 460 and 377 BC, was buried with him, and was not rediscovered until 1758 by an English clergyman.

Scientists, now aware of the pain relieving properties of willow bark, struggled to strip it down to the exact ingredient responsible for its powers, and finally did so in the 1820s. They narrowed their search to salicin, an early form of the family of drugs named salicylates, of which aspirin is a member.

Severe stomach upset from the salicylic acid extracted willow bark posed a problem for scientists. They attempted to remedy this side effect by combining the acid with sodium to neutralize the acid, but it failed to reduce the belly aching.

A French chemist, Charles Frederic Gerhardt put an end to the dilemma in 1853, by adding acetyl chloride to the sodium salicylate mixture. He published the results of his findings, but did not pursue his creation past this point, even though it upset the stomach less than the currently available compound. Mr. Gerhardt saw no future in the time-consuming preparation of his recipe, which he felt did not improve much upon the original medicine. His decision left people grabbing their guts, and stomaching the old standby, sodium salicylate.

Salvation came in 1897, in the person of an eager, young Felix Hoffman, who sought, and found, a drug to help relieve the painful symptoms of his father"s arthritis. This driven chemist, an employee of the Bayer Company, found and dusted off Gerhardt"s old publication, mixed a batch of the recipe, and discovered that it actually worked.

Hoffman used his connection with his employer to pitch his idea, and Bayer reluctantly agreed to produce the medicine they named Aspirin. They invented the name Aspirin by combining the initials A from acetyl chloride, the SPIR from the plant they extracted the salicylic acid from, Spirae ulmaria, and the IN, because it was the common ending for medications at that time. Bayer launched Aspirin in powder form and as a tablet in 1915. Aspirin was an instant success.

Aspirin"s success ended up costing the Bayer Company a great deal of money, when the U.S., England, France, and Russia forced it to surrender the trademark to them, as part of Germany"s war reparations at the close of World War I. Bayer gave up the trademark in 1919, as part of the Treaty of Versailles, which explains why the aspirin, stripped of its trademark, is now written in the lower case.

Today, aspirin holds the title of being the most widely used drug, one that is no longer solely used as a pain reliever and as a fever reducer. Physicians have shown aspirin to be effective in combating arthritis pain, in reducing the risk of heart disease, of death following a heart attack, of cancer. It is doubtful that aspirin will ever again be lost to the annals of history.

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2023-07-19 15:08:211

有关胃药active ingredient

更新1: 咁即系 Citric acid只系for俾返个胃少少acidic?? 但点解可以刚刚会的分量neutralize stomach acidic while 又唔会neutralize到citric acid的acidic? 系咪现多选用carbonate的胃药 虽然胃气涨? 但因为冇其他如肚泻的副产品?? thanks 胃药个active ingredient其实应该系magnseium hydroxide又或者aluminium hydroxide... 大多数胃药都离唔开呢两种 因为胃药系要中和胃部既酸性...所以个active ingredient一定系alkaline既野...但有d胃药会加solid acid 咁系唔好俾d alkaline中和晒所有acid d solid acid可以补充番失去左既acid 令个胃舒服d咁姐.......随左citric acid 仲会加左starch 不过呢d唔系active ingredient..... 有d胃药既ingredient系 magnesium carbonate会出好多gas 如果胃药既ingredient系carbonate 食左之后会有胃气 令胃部唔舒服 co2系by-product黎既 MgCO3 + 2HCl出MgCl2 CO2 同H2O NaHCO3 + HCl出NaCl CO2 同H2O 含有hydroxide e.g magnesium hydroxide会有轻泻作用 但aluminium hydroxide就会令人便秘..... 要搞清楚一点就系active ingredient意思系指"有效成分" 通常用化学物质占一粒药丸几多个percentage黎定 所以胃药既active ingredient只系指carbonate/hydroxide 唔系一d中和唔到胃酸既chemical e.g citric acid/starch 2006-11-21 16:39:01 补充: citric acid虽然系weak acid 但你够唔够胆话citric acid 个pH值唔低????无错citric acid系weak acid 咁只系代表佢杀唔到菌 唔代表佢唔系acidic woo 2006-11-21 16:41:44 补充: Na2CO3系碱性Na2CO3 HCl出NaHCO3NaHCO3再同HClreact出NaCl CO2 同H2O 2006-11-24 11:35:59 补充: 1. 又或者我咁讲 d alkaline溶左落水之后有d会同ca react左先 咁会冇咁多alkaline同胃酸react 你又可能会问: 咁alkaline个份量唔好俾咁多 咁咪唔使用到ca law.其实系唔同人有唔同既胃酸concentration 我地要照顾一d胃酸分泌冇咁多人ga ma 有d人一粒pill都多得济 咁ca都会帮到手.如果胃酸太多 中和之后都应该回复到正常水平 如果有ca仲未react晒 咁咪当vitamin c 咁黎吸收law ca对人体无害 唔须要border个ca有咩用 2006-11-24 11:36:12 补充: 2. 我谂上面答左你.但其实药厂系唔会将alkaline个concentration较到刚好react晒所有acid ga3. yes..你想胃气涨抑或便秘??答案好明显但因为冇其他如肚泻的副产品??carbonate唔会引起便秘或肚泻 NaCl同MgCl都系salt 会被吸收 你睇番条equation 但放出CO2系副产品定系特登? 放出CO2系副产品 因为胃药 要有alkaline for neutralize 胃酸 but as you know the tablet of the 胃药 is a hard solid and the total surface area is paratively *** all if the tablet can be broken into very tiny pieces the total surface area is very large and this can make the reaction of nuetralization much faster........ and if the tablet contact water the gasing effect of citric acid and sodium hydrogen carbonate can make this happen....... By the way citric acid is a weak acid(pare with your stomach fluid) it cannot enhanced the acidity in this case.......
2023-07-19 15:08:421

化解的网络解释化解的网络解释是什么

化解的网络解释是:化解化解是一个词,基本释义是溶化消解。但易学领域主要指对不利的信息根据人体生物节律学提供的方式与方法进行必要的。化解的网络解释是:化解化解是一个词,基本释义是溶化消解。但易学领域主要指对不利的信息根据人体生物节律学提供的方式与方法进行必要的。拼音是:huàjiě。结构是:化(左右结构)解(左右结构)。注音是:ㄏㄨㄚ_ㄐ一ㄝˇ。词性是:动词。化解的具体解释是什么呢,我们通过以下几个方面为您介绍:一、词语解释【点此查看计划详细内容】化解huàjiě。(1)溶化消解。二、引证解释⒈教导晓悟。引《三国志·魏志·公孙渊传》“渊遂自立为燕王”裴松之注引《魏书》:“渊惧吏士不从教令,乃躬驰_自往化解,仅乃止之。”《儿女英雄传》第二五回:“姑娘一听,也知安老爷是一团化解自己的意思。”三、国语词典解除、转化。词语翻译英语todissolve,toresolve(contradictions)_,todispel(doubts)_,toironout(difficulties)_,todefuse(conflicts)_,toneutralize(fears)_德语l_sen,aufl_sen(ineinerchemischenL_sung)_(V)_法语dissoudre,résoudre,neutraliser关于化解的近义词解决消除关于化解的诗句中宵造化解潜移关于化解的成语观化听风化日光天伤风败化化枭为鸠梗顽不化杖化龙叫化子泥古不化关于化解的词语化日光天分化瓦解化枭为鸠橘化为枳梗顽不化十变五化无为自化霄鱼垂化观化听风伤风败化关于化解的造句1、没有化解不了的仇恨,我们不要意气用事。2、靠着他的锦囊妙计,我们总算化解了危机。3、有什么不满的呢,误会的话要及时化解。4、真爱好好珍惜。有误会矛盾要及时化解呀。5、但是,烦恼不应该用吵架来解决,这样只会越来越烦,你们应该是找出原因,把问题化解了,烦恼就没有了。点此查看更多关于化解的详细信息
2023-07-19 15:08:491

化解的诗句化解的诗句是什么

化解的诗句有:中宵造化解潜移。化解的诗句有:中宵造化解潜移。词性是:动词。拼音是:huàjiě。注音是:ㄏㄨㄚ_ㄐ一ㄝˇ。结构是:化(左右结构)解(左右结构)。化解的具体解释是什么呢,我们通过以下几个方面为您介绍:一、词语解释【点此查看计划详细内容】化解huàjiě。(1)溶化消解。二、引证解释⒈教导晓悟。引《三国志·魏志·公孙渊传》“渊遂自立为燕王”裴松之注引《魏书》:“渊惧吏士不从教令,乃躬驰_自往化解,仅乃止之。”《儿女英雄传》第二五回:“姑娘一听,也知安老爷是一团化解自己的意思。”三、国语词典解除、转化。词语翻译英语todissolve,toresolve(contradictions)_,todispel(doubts)_,toironout(difficulties)_,todefuse(conflicts)_,toneutralize(fears)_德语l_sen,aufl_sen(ineinerchemischenL_sung)_(V)_法语dissoudre,résoudre,neutraliser四、网络解释化解化解是一个词,基本释义是溶化消解。但易学领域主要指对不利的信息根据人体生物节律学提供的方式与方法进行必要的。关于化解的近义词消除解决关于化解的成语观化听风叫化子泥古不化杖化龙梗顽不化伤风败化化日光天化枭为鸠关于化解的词语无为自化霄鱼垂化橘化为枳伤风败化化枭为鸠泥古不化十变五化杖化龙分化瓦解化日光天关于化解的造句1、真爱好好珍惜。有误会矛盾要及时化解呀。2、没有化解不了的仇恨,我们不要意气用事。3、只要你在身边,便可化解一切忧愁。4、更多的时候,矛盾是因为误会。误会可以是有心栽培的,也可能是无心碰上的,无论哪一种都需要理解与包容去化解。5、有什么不满的呢,误会的话要及时化解。点此查看更多关于化解的详细信息
2023-07-19 15:09:071

黑客帝国1片尾曲WAKE UP的歌词

楼主好眼光!这是我最喜欢的一首歌.Ratm也是极棒的一支乐队!Come on!Uggh!Come on, although ya try to discreditYa still never editThe needle, I"ll thread itRadically poeticStandin" with the fury that they had in "66And like E-Double I"m madStill knee-deep in the system"s shitHoover, he was a body removerI"ll give ya a doseBut it"ll never come closeTo the rage built up inside of meFist in the air, in the land of hypocrisyMovements come and movements goLeaders speak, movements ceaseWhen their heads are flown"Cause all these punksGot bullets in their headsDepartments of police, the judges, the fedsNetworks at work, keepin" people calmYou know they went after KingWhen he spoke out on VietnamHe turned the power to the have-notsAnd then came the shotYeah!Yeah, back in this...Wit" poetry, my mind I flexFlip like Wilson, vocals never lackin" dat finesseWhadda I got to, whadda I got to do to wake ya upTo shake ya up, to break the structure up"Cause blood still flows in the gutterI"m like takin" photosMad boy kicks open the shutterSet the grooveThen stick and move like I was CassiusRep the stutter stepThen bomb a left upon the fascistsYea, the several federal menWho pulled schemes on the dreamAnd put it to an endYa better bewareOf retribution with mind war20/20 visions and murals with metaphorsNetworks at work, keepin" people calmYa know they murdered XAnd tried to blame it on IslamHe turned the power to the have-notsAnd then came the shotUggh!What was the price on his head?What was the price on his head!I think I heard a shotI think I heard a shotI think I heard a shotI think I heard a shotI think I heard a shotI think I heard, I think I heard a shot"He may be a real contender for this position should heabandon his supposed obediance to white liberal doctrineof non-violence...and embrace black nationalism""Through counter-intelligence it should be possible topinpoint potential trouble-makers...And neutralize them, neutralize them, neutralize them"Wake up! Wake up! Wake up! Wake up!Wake up! Wake up! Wake up! Wake up!How long? Not long, cause what you reap is what you sow
2023-07-19 15:09:161

counteract 和offset 有用法的区别吗?

counter是反对,相反的意思,act是行为动作,那么counteract是指反对的行为,抵制的意思;off是偏离的意思,set是设定的意思,offset是偏离设定。
2023-07-19 15:09:262

为何有酸雨没有碱雨?

碱系唔会有气体 所以唔会系空气中停留而造成碱雨. 碱基系一些金属离子 如NaOH 一定是ionic bond 吸力好强 所以排成一个正 负离子既大阵 即系成千上万既离子排成一个立方体 而唔只一正一负两个离子咁存在. 咁大个阵一定唔会系气体 而系固体. 而你列举既CO2 CO NO2等系covalent bond CO2 就只系一个C同两个O 系唔会黏到其他既CO2 3只野[而唔系成千上万]拖住仲可以自由系空中飞来飞去:系气体. 不过记住 形成酸雨的气体本身系covalent 即系唔系酸性既 只系溶解系水度 产生左H+离子 至有一滴滴酸性的水. 相反 碱基本身已有OH- 已算得是碱性了. 参考: F.5 CHEMISTRY 酸雨正式的名称应为酸性沈降,是人为污染,NO3-及 SO2-4 为主要的致酸物质,其硫氧化物与氮氧化物转化而来。 其他致酸物质:Na+、Cl-、Mg2+、NO3、Ca2+、K+、NH4+。 但人类不会排放致碱物质,所以没有碱雨。 参考: *** 因为天空中没有碱性的气体,所以碱唔可以dissolve in the rain,如果有嘅话应该有碱雨=.= 因为空气中冇碱 就算有 都会比carbon dioxide neutralize 左 变做普通的雨
2023-07-19 15:10:051

求专业人士翻译啊

Calibration: say take 0.15 g in 105 u2103 dry in advance to the heng zhong benchmark of arsenic trioxide, says accurate to 0.0001 grams. In LiangPing iodine, add 10 ml sodium hydroxide titration solution (0.1 mol/L) the heat to dissolve, add 20 ml of distilled water, add 1 drop methyl orange instructions liquid, with sulfuric acid solution (0.5 mol/L) and, yellow for pink, add 2 grams of sodium bicarbonate, 50 ml water, 2 ml of starch liquid instructions (5 g/L), with the preparation good iodine solution (0.1 mol/L) titration solution to a shallow blue, at the same time be blank test.Computing: C (1/2 I2) = m / (V1-v2) x 0.04946M: arsenic trioxide quality, gV1: iodine solution of the dosage, mlV2: blank test of iodine solution dosage, ml0.04946: and 1 ml iodine standard solution is in grams of said arsenic trioxide quality.2. 2 N sulfuric acid solution:
2023-07-19 15:10:153

materialstudio算离子怎么设置

1、首先用MS的话,先画一个NA原子,然后设置一个正电荷就成了,再然后在Modules—AmorphousCell—Calculation中选中画好的NA,设置个数就行了。2、其次用VMD的话,可以把水盒子载入VMD,然后EXtensions—modeling—AddIons,在对话框里点中OnlyneutralizesystemwihNaCL,自动就能添加足够个数的钠离子,使体系中和。3、最后使用packmol的话,直接在输入文件中写NA的个数即可。
2023-07-19 15:10:551

哪位大仙可以告诉我等当量点(equivalence point)到底是什么!!!急!!!

滴定反应需要灵敏的指示剂来指示反应的完成。指示剂在反应完成时,会迅速变成另一种颜色,这样实验者就可以根据指示剂的变色来确定反应的终止。这两个变化通常不是同时完成的,反应定量完成时的状态叫计量点(stoichiometric point)或当量点(equivalence point),指示剂变色时的状态叫滴定终点(end point)。然而通过选用恰当的指示剂可以将指示剂带来的误差(称作终点误差,end point error)降到允许范围之内。
2023-07-19 15:11:162

学术英语理工类 text15 和 text 18 的课文翻译

1.If you want to spark a heated debate at a dinner party, bringup the topic of geneticallyModifiedfoods. For many people, the concept of genetically altered, high-tech cropproduction raises all kinds of environmental, health, safety and ethicalquestions. Particularly in countries with long agrarian traditions -- and vocalgreen lobbies -- the idea seems against nature. 如果你想在某次晚宴上挑起一场激烈的争论,那就提出转基因食品的话题吧。对许多人来说,高科技的转基因作物生产的概念会带来诸如环境、健康、安全和伦理等方面的各种问题。特别是在有悠久的农业生产传统和主张环保的游说集团的国家里,转基因食品的主意似乎有悖自然。2. Infact, genetically modified foods are already very much a part of our lives. Athird of the corn and more than half the soybeans and cotton grown in the USlast year were the product of biotechnology, according to the Department ofAgriculture. More than 65 million acres of genetically modified crops will beplanted in the US this year. The genetic is out of the bottle. 事实上,转基因食品已经成为我们生活重要的一部分。根据农业部的统计,美国去年所种植玉米的1/3,大豆和棉花的一半以上都是生物技术的产物。今年,美国将种植6500多万英亩的转基因作物。基因妖怪已经从瓶子里跑出来了。3.Yet there are clearly some very real issues that need to beresolved. Like any new product entering the food chain, genetically modifiedfoods must be subjected to rigorous testing. In wealthy countries, the debateabout biotech is tempered by the fact that we have a rich array of foods tochoose from -- and a supply that far exceeds our needs. In developing countriesdesperate to feed fast-growing and underfed populations; the issue is simplerand much more urgent: Do the benefits of biotech outweigh the risks?但是,显然还有一些非常现实的问题需要解决。就像任何一种要进入食物链的新食品一样,转基因食品必须经过严格的检验。在富裕的国家里,由于有大量丰富的食品可供选择,而且供应远远超过需求,所以关于生物技术的争论相对缓和一些。在迫切想要养活其迅速增长而又吃不饱的人口的发展中国家,问题比较简单,也更加紧迫:生物技术的好处是否大于风险呢?4.The statistics on population growth and hunger are disturbing.Last year the world"s population reached 6 billion. And by 2050, the UNestimates, it will probably near 9 billion. Almost all that growth will occurin developing countries. At the same time, the world"s available cultivableland per person is declining. Arable land has declined steadily since 1960 andwill decease byhalf over the next 50 years, according to the InternationalService for the Acquisition of Agri-Biotech Applications (ISAAA).关于人口增长和饥饿的统计数字读来令人感到不安。去年,世界人口达到了60亿。联合国预测,到2D0年,这个数字很可能将接近90亿,而增加的人口几乎都来自发展中国家。与此同时,世界人均耕地正在减少。国际农业生物工程应用技术采购管理局(ISAAA)称,自1960年以来,耕地面积一直持续下降,并将在今后50年减少一半。5The UN estimates that nearly 800 million people around theworld are undernourished. The effects are devastating. About 400 million womenof childbearing age are iron deficient, which means their babies are exposed tovarious birth defects. As many as 100 million childrensuffer from vitamin A deficiency, a leading cause of blindness.Tens of millions of people suffer from other major ailments and nutritionaldeficiencies caused by lack of food.联合国估计,世界上有近8亿人口营养不良。它产生的效应是破坏性的。大约有4亿的育龄妇女体内缺铁,也就是说,她们的婴儿将可能有各种天生的缺陷。数量多达1亿的儿童缺乏维生素A,这是导致失明的主要原因。还有数千万的人患有因食物匮乏而导致的其他严重疾病和营养不良症。6How can biotech help? Biotechnologists have developedgenetically modified rice that isfortified with beta-carotene -- which the body converts intovitamin A -- and additional iron, and they are working on other kinds ofnutritionally improved crops. Biotech can also improvefarming productivity in places where food shortages are causedby crop damage attribution to pests, drought, poor soil and crop viruses,bacteria or fungi.生物技术对此能做些什么呢?生物技术专家已经培育出了含有β—胡萝卜素(身体可将之转化为维生素A)和更多铁元素的转基因水稻,目前正在研究培育其他一些增进营养成分的农作物。生物技术还可以帮助提高因虫害、干旱、土壤贫瘠和作物病毒、细菌或真菌导致作物减产而出现食物匮乏的地区的农业生产率。7Damage caused by pests is incredible. The European corn borer,for example, destroys 40 million tons of the world"s corn crop annually, about7% of the total. Incorporatingpest-resistant genes into seeds can help restore the balance. Intrials of pest-resistant cotton in Africa, yields have increased significantly.So far, fears that genetically modified,pest-resistant crops might kill good insects as well as badappear unfounded.虫害带来的损失令人难以置信。例如,欧洲玉米螟每年毁掉4000万吨玉米,占世界玉米总产量的7%。把抗虫害的基因植入种子可以帮助避免这一损失。在非洲进行的抗虫害棉花试验中,棉花的产量已大幅度提高。有人担心,抗虫害的转基因作物不仅将害虫杀死,而且有可能连益虫也一起杀死,但到目前为止,这种担心似乎没有根据。8Viruses often cause massive failure in staple crops indeveloping countries. Two years age, Africa lost more than half its cassavacrop -- a key source of calories -- to the mosaic virus. Genetically modified,virus-resistant crops can reduce that damage, as can drought-tolerant seeds inregions where water shortages limit the amount of land under cultivation.Biotech can also help solve the problem of soil that contains excess aluminum,which can damage roots and cause many staple-crop failures. A gene that helpsneutralize aluminum toxicity in rice has been identified.病毒常常在发展中国家造成主要粮食作物的大面积歉收。两年前,花叶病毒使非洲损失了超过一半的木薯,而这种作物是当地人的主要食物。转基因的抗病毒作物可以减少这种损失,就像抗干旱种子在可耕地面积因缺水而受到限制的地区起到的作用一样。含铝过高的土壤会损伤作物的根系并使许多主要作物歉收,对于这种问题生物技术也能帮助解决。目前,研究人员已经识别出一种有助于中和水稻里铝的毒性的基因。9Many scientists believe biotech could raise overall cropproductivity in developing countries as much as 25% and help prevent the lossof those crops after they are harvested.许多科学家认为,生物技术能够把发展中国家的农业总产量提高25%,并且帮助防止作物收割后遭受损失。10Yet for all that promise, biotech is far from being the wholeanswer. In developing countries, lost crops are only one cause of hunger.Poverty plays the largest role. Today more than 1 billion people around theglobe live on less than " 1 aday. Making genetically modified crops available will not reduce hunger iffarmers cannot afford to grow them or if the local population cannot afford tobuy the food those farmers produce.尽管具有这么多潜力,生物技术还远远不能解决全部问题。在发展中国家,作物歉收只是造成饥饿的一个原因。贫穷才是罪魁祸首。今天,全世界有超过10亿人口每天靠不到1美元维持生计。如果农民没钱种植转基因作物或当地人买不起农民种出的粮食,培育转基因作物就无法减少饥饿。11Nor can biotech overcome the challenge of distributing food indeveloping countries. Taken as a whole, the world produces enough food to feedeveryone -- but much of it is simply in the wrong place. Especially incountries with undeveloped transport infrastructures, geographyrestricts foodavailability as dramatically as genetics promises to improve it.此外,生物技术也无法克服在发展中国家分配粮食的难题。从整体上看,世界生产的粮食足够养活所有人,但大部分粮食却不是在需要的地方。尤其在运输基础设施落后的国家,地理条件对食物供给的限制正如遗传学为食物供给带来的希望一样大。12Biotech has its own "distribution" problems.Private-sector biotech companies in the rich countries carry out much of theleading-edge research on genetically modified crops. Their products are oftentoo costly for poor farmers in the developing world, and many of those productswon"t even reach the regions where they are most needed. Biotech firms have astrong financial incentive to target rich markets first in order to help themrapidly recoup the high costs of product development. But some of thesecompanies are responding to needs of poor countries. A London-based company,for example, has announced that it will share with developing countriestechnology needed to produce vitamin-enriched "golden rice".生物技术也面临自身的“分配”问题。许多转基因作物方面的尖端研究都是富国的私营生物技术公司进行的。对发展中国家的穷苦农民来说,这些公司的产品通常显得过于昂贵,而且这些产品中的大部分甚至无法到达最需要的地区。强大的经济刺激促使生物技术公司把富裕国家的市场作为第一目标,以便能够尽快回收产品开发的高额成本。不过,有些公司已开始对贫穷国家的需要做出反应。例如,一家总部在伦敦的公司已经宣布,它愿意和发展中国家一起分享生产维生素增强型的“金水稻”所需的技术。13More and more biotech research is being carried out indeveloping countries. But to increase the impact of genetic research on thefood production of those countries, there is a need for better collaborationbetween government agencies -- both local and in developed countries -- andprivate biotech firms. The ISAAA, for example, is successfully partnering withthe USAgency for International Development, local researches andprivate biotech companies to find and deliver biotech solutions for farmers indeveloping countries.发展中国家正在进行越来越多的生物技术研究。但是,为扩大遗传学研究对这些国家的粮食生产的影响,政府各部门(包括当地政府部门和发达国家的政府部门)与私营生物技术公司之间需要更好的合作。例如,国际农业生物工程应用技术采购管理局目前正与美国国际发展署、当地的研究人员以及私营的生物技术公司进行成功的合作,以帮助发展中国家的农民寻求生物技术方面的解决办法。14Will "Frankenfoods" feed the world? Biotech is not apanacea, but it does promise to transformagriculture in many developingcountries. If that promise is not fulfilled, the real losers will be theirpeople, who could suffer for years to come.“弗兰肯食品”能养活世界吗?生物技术虽不是万灵药,但它确实有希望改造许多发展中国家的农业。如果这种希望不能实现,真正的受害者将是这些国家的人民,他们可能会在未来的岁月里遭受苦难。~快采纳我~
2023-07-19 15:11:501

想收集下高中英语单词含有否定性质的单词。哪位帮我整理下发给我啊!先谢谢啦!

估计没人给你发
2023-07-19 15:12:215

吃巧克力的弊处.英语说

Chocolate has many fats
2023-07-19 15:12:422

如何让自己更年轻 英语作文

面膜,白面粉常往脸上抹,整容大院去报道,化妆时尚法要做到。。。。。。。。。。
2023-07-19 15:12:512

请高手将下面的文字翻译成英语,高分奖励! 使用翻译器的就别浪费时间啦。

Hold on, until successCan keep going until I succeed, is necessary for success. As long as can hold out for more than others, you can have more success than others. You this prior determination, never give up.Can hard work, stick to it, is the greatest asset life. In fact, insist on is just your own beliefs into action. Even in the face of the occasional setbacks and failures, as long as you have the courage to hold on, there is no impossibilities.Whenever people to try new things, nature can produce fear. But be careful when born fear, don"t worry, and should be in accordance with the following analysis smart work:L * take a piece of paper, and write "I fear what"?L * list may affect their behavior all fear.L * choose the most significant fear.L * analysis this fear to help you, and how to stop you.L * consider, if you eliminate this fear, can have what results.L * take action, find out the method of eliminating this fear.Every great achievement in history, are from facing to fear but still persist. In fact, stick to it is the difference between the success or failure of the life characteristics. If you have to do it will power, there is no impossibilities. Persistence is pursuit of the goal of the biggest assets.
2023-07-19 15:13:005

秘密潜入2中文版第4关怎么过 安了C4后 好像要护送什么车的

不用的,你只要安好C4后,20秒内回去安全的地方就行了,记住,千万不要按好后去桥对面,等c4爆了后,就自动下一关。
2023-07-19 15:13:184

关于an apple a day keeps the doctor away的作文

It"s one of the most recognizable expressions around: "An apple a day keeps the doctor away." But besides the fact that it rhymes, which makes it fun to say and easy to recall, does it really have any value? Could the common apple honestly help a person to maintain perfect health?The first printed mention of this saying can be found in the February 1866 issue of the publication "Notes and Queries." The publication printed the proverb like this: "Eat an apple on going to bed, and you"ll keep the doctor from earning his bread." Nearly 150 years later, variations of this adage are still quoted. It"s unlikely that the saying would have maintained such popularity if there wasn"t some truth to it, right? With that in mind, let"s consider some of the apple"s components and their effect on our health:*Pectin -- Pectin is a form of soluble fiber than lowers both blood pressure and glucose levels. It can also lower the levels of LDL, or "bad" cholesterol in the body. Pectin, like other forms of fiber, helps maintain the health of the digestive system. Apples are an excellent source of pectin.*Boron -- A nutrient found in abundance in apples, boron supports strong bones and a healthy brain.*Quercetin -- A flavonoid, this nutrient shows promise for reducing the risk of various cancers, including cancers in the lungs and breast. It may also reduce free radical damage. Free radicals develop when atoms in the body"s cells have unpaired electrons, which can lead to damage to different parts of the cell, including DNA. Quercetin may neutralize free radical damage, which has been implicated in a variety of age-related health problems, including Alzheimer"s disease.*Vitamin C -- Vitamin C boosts immunity, which helps maintain overall health.*Phytonutrients -- Apples are rich in a variety of phytonutrients, including vitamins A and E and beta carotene. These compounds fight damage from free radicals and can have a profound affect on health, including reducing the risk of heart disease, diabetes and asthma.Apples also act as a toothbrush, cleaning teeth and killing bacteria in the mouth, which may reduce the risk of tooth decay. They"re also low in calorie density, one of the trademarks of a healthy food. When a food is low in calorie density you can eat good size portions of the food for relatively few calories. In addition, apples are affordable and readily available.With all of this information, it"s easy to see that, yes, an apple has its health benefits. But does eating an apple every day mean you"ll never get sick? And is an apple really healthier than other fruits?
2023-07-19 15:13:521

用英文介绍西红柿炒鸡蛋的做法

first of all, prepare four tomatos and threeeggs, pour oil into the pan while stirringthe eggs until they are mixed up, when oilheats up and put the egg liquid into the pan.when eggs are finished, put it into the bowl,then add some oil into the pan and put tomatosinto the pan and fry it until tomatos becomejam and put the egg cake into the pan and mixup with tomato juice.for 2 minutes, the dish is finished.
2023-07-19 15:14:023

初中英语哦

题目是不是有问题?一般情况下应该是Haven"t you ordered your food yet?
2023-07-19 15:15:094

10篇书虫读后感要初中水平英文的

写作思路:要直接简化任务语言。在叙述中,我们要把直接叙述变成间接叙述,尽可能简化人物语言。这样,即使情节连贯,又使语句“简练”。In the winter holiday.I read a book.It is very wonderful.Its name is "The monkeys paw".The book tells about the Whites and a paws story.Mr.Whites friend gave him a small and dirty paw.He said "It can makes your dreams come true.But youll feel unhappy."Mr.White wanted ?3000.And after some days,he got ?3000,but his son deid.The end is Mr.White and his wife were very sad.I think“The monkeys paw”is very useful.Because it tells us some important things.Such as "get something for nothing." is impossible.We must do every things by ourselves.And we must know learn by doing.When I was 10 years old.I was not good at math.And I had tried to find many escape solutions.But no one is good for me.My mother tolds me,"learn by doing",and I did some test questions.Now,my math is ok.I think my story likes "The monkeys paw".And in the new future,I will do every things by my self and do not rely on my father and mother.I know I am the best.What a nice story!“The monkeys paw”is perfect,and I will learn more and more in it.译文:在寒假里。我读了一本书。它非常棒。它的名字是“猴子的爪子”。这本书讲述了白人和爪子的故事。怀特先生的朋友给了他一只又小又脏的爪子。他说:“它能让你的梦想成真。但你会感到不快乐。”怀特先生想要3000英镑。几天后,他得到了3000英镑,但他的儿子戴德。结局是怀特先生和他的妻子非常伤心。我认为“猴爪”是非常有用的。因为它告诉我们一些重要的事情。比如“免费得到一些东西”。这是不可能的。我们必须自己做每件事。我们必须知道在实践中学习。当我10岁的时候,我不擅长数学。我试图找到很多逃避的方法。但是没有人对我有好处。我妈妈告诉我“边做边学”,我做了一些测试题。现在,我的数学还不错。我想我的故事就像“猴子爪”。在新的未来,我会自己做每件事,不依赖父母。我知道我是最好的。多好的故事啊!”“猴爪”很完美,我会在里面学到更多。
2023-07-19 15:15:172

书虫系列英文读后感

圣诞欢歌英文读后感This story represents a very original forces, the boss is very stingy done in a Christmas dream, then he changed his views and see how to use their money to help others, charity! I hate that mean the original owner, since he has so much money, but not always help others. Although money is very important, to live in this world money is totally unacceptable and if the money can live a life on, let the world, more people happy, they should spend the money to, because it values. Fortunately, the boss wake up later, the others will be happy to know the truth themselves happy to help a disabled child, for their family and their assistants together after a happy Christmas! 《朝花夕拾》 i read the book written by luxun .it is called zhaohuaxishi. it includes 10 short articles about the writers stories .they are based on his own experience , when i read this book ,i feel very happy to see luxuns childhood. it was diffrent from ours,so we may find it intersting and exciting. luxuns langange is very great but maybe difficult to understand . but through his words ,we can find his happiness in his heart . 《潘德尔的巫师》 17th century English related witchcraft superstition is extremelyserious, many everybody because are accused but to suffer in vain forthe sorcerer the fatal disaster. This small story is Zhan Nite abouther whole family pitiful bitter experience narration. Zhan Niespecially told this story the time is in 1634, at that time her onlythen 9 years old, because are actually accused to imprison for thesorceress in the Lancaster castle jail. Before this her maternalgrandmother, the mother and elder brother are all treated as thesorcerer to execute.
2023-07-19 15:15:362

请教英语牛人 辨析几组词汇

1.sever 物理上的切割(强调动作),或比喻意义上的终止结束sever a rope 割断绳子She has severed her connection with the firm. 她已同那家公司脱离了关系. separate (使事物或人与人)分离, 分开(强调状态)The two parts of the pipe have separated at the joint.这个管子从接口处分成两截了England is separated from France by the Channel. 英国和法国之间隔着英吉利海峡2.pretend 假装The children pretended to eat the mud pies. 孩子们假装吃泥饼simulate 假装有或感到(尤指情感),伪装simulate anger,insects that simulate dead leaves 伪装成枯叶的昆虫3.landscape (陆上)风景, 景色a bleak urban landscape 单调的市区景色scenery 景色,风光(自然)mountain scenery 山景4.interpretation 解释(特殊的方式)the conductor"s controversial interpretation of the symphony 该指挥对那交响乐曲值得商榷的理解explanation 解释,说明He left the room without explanation. 他离开了房间而未加解释.5.endless 无止境的; 无穷尽的(个人感觉就是2维空间无限,没有尽头的路)endless road ,endless patience(可以用时间衡量)infinite 3维空间的无限,或无法衡量的(想象力等)infinite space 无限的空间 the infinite goodness of God 上帝无限的恩惠
2023-07-19 15:13:431

鬼泣3出招表

锁定前或后J或L
2023-07-19 15:13:445

蛋糕起名字

有没有好听的蛋糕名字? 卡布琪诺 提拉米苏 巧克力堡 黑色甜蜜 亥巧克力小雪 鲜果塔 火焰石 黑月亮 蜜桃星球 焦糖小碗 晴朗夏日 美之旋律 悉尼之风 尼斯湖的秘密 纯色之冬 秘密城堡 巴厘岛之恋 秋的旋律 绿之流水 梦幻的夜 嫣然淑女 婉约盛放 蛋糕、甜点的名字(越多越好) 木糠杯、焦糖布丁、纸杯蛋糕、北海道戚风蛋糕、牛轧糖、推推乐、草莓大福、芒果慕斯。。 栗子蛋糕 忌廉蛋糕 红草莓蛋糕 海绵蛋糕 拿破仑蛋糕 歌剧院蛋糕 --------------------- 意大利的甜品: 1. Triamisu 提拉米苏 2. Cannoli 法国的甜品: 1. Creme brulee 2. Mousse 美国的甜品: 1. Cheesecake ----------------------- 蝴蝶酥 Butterfly Cracker 蛋黄莲茸酥 Puff with Lotus Seeds Paste and Egg Yolk 蛋挞 Egg Tart ----------------------- 厚片土司(英文名:Toast) 凤梨松饼(英文名:Pineapple Cake) 花生松饼(英文名:peanut Cake) 咖啡松饼(英文名:Synthesized) 金瓜宝(英文名:Pumpkin Squash Custard) 法式蜜桃多士(英文名:Peach Witch Toast Fresh Style) 榴莲酥(英文名:Durian Custard Pie) 木瓜慕思(英文名:Papaya Mousse) 香蕉奶油冻(英文名:Banana with Ice Cream) ------------------------------ 甜品 西点类 108 黑森林蛋糕 Black Forest Cake 109 英式水果蛋糕 English Fruit Cake 110 草莓奶酪蛋糕 Strawberry Cheese Cake 111 草莓蛋糕 Strawberry Cake 112 蓝莓奶酪蛋糕 Blueberry Cheese Cake 113 美式奶酪蛋糕 American Cheese Cake 114 绿茶奶酪蛋糕 Green Tea Cheese Cake 115 意大利提拉米苏 Italian Tiramisu 116 大理石奶酪蛋糕 Marble Cheese Cake 117 咖啡奶酪蛋糕 Coffee Cheese Cake 118 红莓松糕 Cranberry Muffin 119 干果派 Mixed Nuts Pie 120 蓝莓松糕 Blueberry Muffin 121 琳泽蛋糕 Linzer Cake 122 芒果木司蛋糕 Mango Mousse Cake 123 苹果派 Apple Pie 124 草莓酥条 Strawberry Napoleon Sliced 125 巧克力榛子蛋糕 Chocolate Hazelnut Cake 126 巧克力木司 Chocolate Mousse 127 水果脆皮酥盒 Puff Pastry with Fruits 128 维也纳巧克力蛋糕 Sacher Cake 129 热情果木司 Passion Mousse 130 杏仁多纳圈 Almond Donuts 131 牛奶巧克力多纳圈 Milk Chocolate Donuts 132 鲜水果配沙巴洋 Frui......>> 各种蛋糕的名字,越多越好 我就知道这么多^_^美式芝士饼USAcheese cake 德式蜂巢蛋糕Besting cake 牛轧饼Negative 脆皮朱古力蛋糕Prelate full entwine chocolate cake 榛子薄脆百香果蛋糕Praline Hazelnut full entwine Passion cake 椰青菜糕coconut cake 浓味朱古力杯chocolate in glass 芒果布甸Mango pudding 奇异耿米饭吉士杯Kiwi custardin glass 朱古力布朗尼Brownies 香蕉杏仁饼Banana Almond cake 核桃挞WalnutsTarts 忌廉巴夫Piffle 椰子布甸coconut pudding 姜味香芒蛋糕Mango cake 脆皮朱古力忌廉蛋糕Prelate full entwinechocolate cream cake 核桃拿破伦蛋糕WalnutsNapoleon 德式芝士饼Germany cheese cake 纽约芝士饼New Yorkcheese cake 酸奶布甸Yogurtpudding 云石芝士蛋糕Marble cheese cake 白桃软心草莓蛋糕Strawberry and peach cake 传统拿破伦饼Traditional Napoleon 白森林蛋糕White forest cake 吉士蓝莓朱古力饼 Blueberry and custard chocolate cake 栗子忌廉饼Chestnut cream cake 栗子朱古力饼Chestnut chocolate cake 草莓朱古力千层饼Strawberry chocolate puff pastry 乳酪红心橘子甘笋饼Yogurt carrot cake 蓝莓杏仁牛油饼Blueberry almond butter cake 德国奶油香橙饼German orange cream cake 芒果芝士饼Mango cheese cake 百香果黄杏芝士饼Apricot thyme cheese cake 局草莓软心杏仁饼Baked strawberry almond soft heart cake 吉士蛋布甸 Custard pudding 法式炖蛋French pudding 鲜果者厘杯Fresh fruit jelly cup 金宝苹果批Apple crumble 玉桂香蕉朱古力忌廉饼Banana chocolate cream cake 浓咖啡朱古力忌廉饼Coffee chocolate cake 浓香椰子蛋糕coconut cake 朱古力沙架sacker cake 法式芝士饼French cheese cake 泰式红豆糕Thai-style red bean pudding 泰式绿豆糕Thai-style green pudding 泰式榴莲西米糕Thai-style durian sago pudding 泰式芭兰西米糕Thai-style sago pudding 红酒芝士饼red wine cheese cake 泰式南瓜吉士蛋Thai-style pumpkin custard 泰式黑米糕Thai-style dark rice pudding 椰皇黑糯米Dark coconut glutinous rice 印尼布甸Indonesian pudding 椰汁西米布甸Coconut sago pudding 泰式椰汁粟米糕Thai-style coconu......>> 帮忙起蛋糕名字 自己选吧! 芒果芝士蛋糕,香浓巧克力果仁蛋糕,红茶芝士蛋糕,无需烤箱的蛋糕-冻柠檬芝士蛋糕,柠檬芝士蛋糕,香橙戚风蛋糕卷,黄金海绵蛋糕卷,黑芝麻蛋糕卷,七彩椰味蛋糕卷,天使蛋糕,香橙小蛋糕,清水小蛋糕,花生酱小蛋糕,黄金蛋糕,奶油蛋糕卷,柠檬杏仁小蛋糕,肉桂苹果芝士蛋糕,草莓慕斯蛋糕,爱尔兰甜酒乳酪蛋糕,抹茶戚风,三黑核桃戚风,浓香朱古力慕丝蛋糕,橙香椰蓉奶油蛋卷,香酥浓郁--朗姆葡萄乳酪塔,迎接奥运戚风也要饮酒庆祝--百利甜酒戚风,抹茶カステラ--抹茶长崎蛋糕,巧克力乳酪布朗尼,美味无敌之橙香南瓜小玛芬,干果磅蛋糕,可可玛德琳,橙香葡萄磅蛋糕,长假点心之焦糖玛德琳 ,咖啡慕斯蛋糕 ,爱巧克力的双鱼座--迷失黑森林蛋糕,红糖酱油土司 & 香蕉慕丝 ,奶油巧克力蛋糕 ,紫薯奶酪戚风,提拉米苏,巧克力黄桃慕斯蛋糕之考维曲巧克力,法式乳酪蛋糕,南瓜葡萄干蛋糕,玛德琳蛋糕(Madeleines),玛德琳蛋糕(Madeleines),草莓酸奶慕司蛋糕,栗子蒙布朗芝士蛋糕,炼奶咖啡蛋糕,燕麦苹果松糕,巧克力豆乳酪小蛋糕,葡萄干重油蛋糕,法式椰丝小海绵,翻糖国际象棋蛋糕,千层草莓慕斯蛋糕,mini蔓越莓杏仁蛋糕,蓝莓夹心蛋糕,慕司南瓜芝士蛋糕,焦糖布丁蛋糕 好听好吃的蛋糕名 夏洛特草莓蛋糕 黑森林 提拉米苏 焦糖玛奇朵 帮忙想个好听的蛋糕房名字 心特软 甜蜜时光 甜蜜蜜 浪漫满屋 幸福的洋果子 Hello cake! 唯美蛋糕美味时差 蛋糕馨语 甜蜜心情 苏菲亚 麦香亭 围裙蛋糕 美点蛋糕 千寻点心店可心蛋糕点 蜡烛蛋糕点 魔法点心 新金冠点心店 生日蛋糕的名字 丘比特,邂逅,心花怒放,一见钟情,满园春色,原谅我,一生痴心,海洋世界,白雪公主,珍爱永远 要~各种蛋糕、甜食的名称…… 著名的意大利甜点,它起源于一个温馨的故事:二战时期,一个意大利士兵的妻子打算给即将出征的丈夫准备干粮,但由于家里很贫穷,因此她就把所有能吃的饼干和面包都做进了一个糕点里,那个糕点就是提拉米苏。因此提拉米苏在意大利语里有“带我走”的意思,象征食用者吃下的不只是美味,还有爱和幸福。沙河蛋糕(Sachertorte)奥地利著名甜点,起源于1832年某王子的家厨所做的一种甜美无比的巧克力馅。这种巧克力馅当时深受皇室喜爱。后来,一家贵族经常出入的饭店便推出了以这种巧克力涂抹的内裹杏仁及果酱的巧克力奶油蛋糕。现在,沙河蛋糕已经成为了奥地利的国宝级点心。维也纳巧克力杏仁蛋糕(Imperial Torte)以奥地利首都命名的蛋糕,名字起源于奥地利最好的宾馆之名。当年宾馆开幕时,一位糕饼师傅烘焙出了一种口感特殊的蛋糕。它不仅受到了皇帝的喜爱,还被皇帝亲自赐名为“Imperial Torte”(甜密的问候)。 由于维也纳巧克力杏仁蛋糕有着使用可口的牛奶巧克力和甜美杏仁制成的外层,以及铺满碎杏仁和可可亚的内层,因此整个蛋糕吃起来口感既甜美又细腻。欧培拉(Opera)法国知名甜点,是款有着数百年历史的蛋糕,里边那股浓郁的巧克力味与咖啡味令每个爱好巧克力与咖啡的人都迷恋不已。传统的欧培拉共有六层,包括三层浸过咖啡糖浆的海绵蛋糕,以及用牛油、鲜奶油和巧克力奶油做成的馅。整个蛋糕充满了咖啡与巧克力的香味,入口即化。 对欧培拉的起源共有两种不同的说法。一种说法认为,此甜点原是法国一家点心咖啡店所研发出的人气甜点。因为超受欢迎、店址又位于歌剧院旁,所以店主干脆将此甜点直接命名为“Opera”(“Opera”一词在法文里的意思就是“歌剧院”)。而另一种说法却认为,欧培拉蛋糕最先是由1890年开业的甜点店Dalloyau所创制。由于其形状非常方正。由于它表面淋着的那层薄薄的巧克力看起来很像歌剧院内的舞台,而饼面上点缀的金箔片看起来又像是歌剧院加尼叶(原巴黎著名歌剧院的名字),它才得到了这个形象的称呼。慕斯蛋糕(Mousse Cake)法国的另一款著名甜食,是厨师们最初在奶油中加入各种口感和风味的辅料后诞生的产物。由于慕斯蛋糕无论是外型、色泽、结构还是口味均变化丰富,且口感自然纯正,再加上将其冷冻后食用便会愈加其味无穷的特点,因此它立刻成为了蛋糕中的极品存在。 慕斯蛋糕的出现,不但符合了人们追求精致时尚、崇尚自然健康的生活理念,也给了蛋糕大师们更大的创造空间。因为慕斯蛋糕的水准可以反映出大师们的真正功力和世界蛋糕发展的趋势,所以在西点世界杯上,慕斯蛋糕的比赛历来十分激烈,大师们往往通过慕斯蛋糕的制作来向人们展示出他们内心的生活悟性和艺术灵感。木材蛋糕(Yule log)法国节日必备点心,其名字中的“Yule”其实是圣诞节的旧称,因为从维京时代至今的冬季庆典,英格兰的人们在圣诞节时都会在林子里砍下树木拖回去放置在壁炉内,从平安夜开始烧上12天,所以这种树木就被叫做“Yule log”(圣诞树)。 而法国人在过平安夜时,人们都会回乡团聚。半夜时,全家人会聚集在暖炉前,边吃着这种象征着节日的蛋糕(通常配以咖啡或红茶)边借机联络家人间的感情。因此木材蛋糕就成了法国人过节时的不可或缺之物了。奶酪蛋糕 (Cheese Cake) 奶酪蛋糕,顾名思义就是加有奶酪的蛋糕。而蛋糕中所使用的奶酪则起源自 *** 。很久以前,一个 *** 人在独自横越沙漠前,曾将新鲜牛奶倒进一个羊胃制成的皮囊里。但是当他到达目的地打开皮囊后,却发现里边的牛奶竟已经变成了一块固体状物体(即凝乳)和一汪液状的乳浆......>> 蛋糕有哪些名称? 蛋糕主要有慕斯蛋糕,黑森林蛋糕,奶酪蛋糕,提拉米苏,舒芙里蛋糕,戚风蛋糕,玛德琳蛋糕和布朗尼~ 经典的蛋糕名字 黑森林蛋糕,提拉米苏蛋糕,布朗尼蛋糕,【壹蛋糕】都有哦。。。
2023-07-19 15:13:481

沉默的羔羊有哪几部

沉默的羔羊5部犯罪合集~链接: https://pan.baidu.com/s/1bRZJx0dRp7Rfa5KyEFfs7g 提取码: hkrm
2023-07-19 15:13:497

hill和mountain有什么区别?

丘hill 山mountain 這會不會容易一些理解 ??
2023-07-19 15:13:504

英国的英语怎么写?

英国的英语有三种形式:1.Britain;2. England;3. the United Kingdom。 扩展资料   1.Britain   例句示范:   Henceforward France and Britain had a common interest. 自此法国和英国有了共同的利益。   Britain and Argentina reopened diplomatic relations.英国和阿根廷重新建立了外交关系。   Britain and France have expressed some disagreement with the proposal.英国和法国对这项提案已经发表了一些反对意见。   The department said many countries had reciprocal agreements for health care with Britain.该部门称许多国家和英国签订了医疗卫生互惠协议。   2.England   例句示范:   She severed her ties with England.她断绝了和英国的往来。   I boarded the plane bound for England.我登上了飞往英格兰的"飞机。   He had lost his place in the England team.他失去了在英格兰队的位置。   In a warm-up game for the World Cup, Uruguay have beaten England.在世界杯热身赛中,乌拉圭队打败了英格兰队。   3.the United Kingdom   例句示范:   This television program provoked a spirited debate in the United Kingdom.这个电视节目在英国引起了激烈的辩论。   He visited various penal institutions in the United Kingdom in the late 1930s. 20世纪30年代末他探访了英国各种各样的服刑机构。   The study was supported by the Medical Research Council in the United Kingdom and Cancer Research UK.这项研究获得了英国医学研究委员会和英国癌症研究所的支持。   They have pen pals in the United Kingdom and Australia.他们已经有英国和澳大利亚的笔友。   We are a company based both in the United Kingdom and nigeria.我公司建立于英国和尼日利亚。
2023-07-19 15:13:511

半导体设备有哪些种类

半导体器件(semiconductor device)通常,这些半导体材料是硅、锗或砷化镓,可用作整流器、振荡器、发光器、放大器、测光器等器材。为了与集成电路相区别,有时也称为分立器件。绝大部分二端器件(即晶体二极管)的基本结构是一个PN结。利用不同的半导体材料、采用不同的工艺和几何结构,已研制出种类繁多、功能用途各异的多种晶体二极,可用来产生、控制、接收、变换、放大信号和进行能量转换。晶体二极管的频率覆盖范围可从低频、高频、微波、毫米波、红外直至光波。三端器件一 般是有源器件,典型代表是各种晶体管(又称晶体三极管)。顺便说一下半导体行业的企业,如Macom科技公司。MACOM是半导体行业的支柱型企业,有着60多年的发展历程。是一家高性能模拟射频、微波和光学半导体产品领域的领先供应商,在射频、微波、光电领域均享有很高知名度。
2023-07-19 15:13:512

山用英语怎么说

  山是象形字。甲骨文和金文字形,象山峰并立的形状。“山”是汉字的一个部首,以山做意符的字多与山有关。那么你知道山用英语怎么说吗?下面来学习一下吧。    山英语说法1:   mountain    山英语说法2:   hill    山的相关 短语 :   橄榄山 Mount of Olives ;   贝克山 Mount Baker ;   筑波山 Mount Tsukuba ;   卡尔顿山 Calton Hill Mount Carleton   十字架山 Hill of Crosses ; Colline des Croix ; Kryziu Kalnas    山的英语例句:   1. I"ll run over to Short Mountain and check on Mrs Adams.   我会开车去肖特山看看亚当斯夫人。   2. Mount Unzen has been spewing out volcanic ash, gas, and rock today.   云仙山今天一直在向外喷涌火山灰、气体和火山岩。   3. He turned his back on them and stomped off up the hill.   他转身不理他们,噔噔噔地爬上了山。   4. Alexandra looked plump and awkward in her cast-off clothing.   亚历山德拉穿着那身过时的衣裳,显得臃肿笨拙。   5. Sheep"s milk is produced in much the same way as goat"s milk.   绵羊奶和山羊奶的生产过程差不多。   6. They drove into the mountains for a weekend of nature study.   他们周末开车进山去观察自然。   7. The mountains hereabouts reach heights of over 2000 metres.   这一带的山高达两千多米。   8. The most important and underrated Alpine wine country is Austria.   最重要、最受低估的阿尔卑斯山葡萄酒生产国乃是奥地利。   9. Typically, the Norwegians were on the mountain two hours before anyone else.   像往常一样,挪威人比其他所有人都提前两小时进山。   10. I am content to admire the mountains from below.   我满足于从山脚下观赏山景。   11. Europe"s biggest Stone Age earthworks are at Silbury Hill in Wiltshire.   欧洲石器时期最大的土木防御工事位于威尔特郡的西尔布利山。   12. The group has adventured as far as the Austrian alps.   该队伍的探险之旅远至奥地利的阿尔卑斯山。   13. Mount Marcy is the highest mountain in the Adirondacks.   马西山是阿迪朗达克山脉中最高的山。   14. The Tel, an artificial mountain, entombs Jericho"s ancient past.   泰勒山作为一座人造山掩藏着杰里科过去古老的历史。   15. Press the raspberries through a fine sieve to form a puree.   用一个细筛子将山莓压碎过滤,以制成山莓泥。
2023-07-19 15:13:411

电子技术文献综述

电子技术文献综述   电子技术是根据电子学的原理,运用电子元器件设计和制造某种特定功能的电路以解决实际问题的科学,包括信息电子技术和电力电子技术两大分支。下面是我精心整理的电子技术文献综述,希望对你有帮助!   摘要:本文讲述了一种基于VHDL设计密码锁的原理和方法,这种密码锁具有安全性高,成本低,操作简单等特点。以下是几位专家用VHDL语言解决和设计的密码锁的方案以及实例描述。   关键词:VHDL 密码锁   前言:随着社会的发展和人们生活水平的提高,人们的安全意识也逐渐加强。密码锁以安全性高,成本低等优点受到越来越多人的欢迎。VHDL语言覆盖面广,描述能力强,所以采用VHDL语言所设计的密码锁更是受到绝大多数的人的接受和欢迎。   正文:   1.vhdl   1.1 vhdl语言的概念及特点   VHDL的英文全名是Very-High-Speed Integrated Circuit HardwareDescription Language,诞生于1982年。1987年底,VHDL被IEEE和美国国防部确认为标准硬件描述语言 。自IEEE公布了VHDL的标准版本,各EDA公司相继推出了自己的VHDL设计环境,或宣布自己的设计工具可以和VHDL接口。此后VHDL在电子设计领域得到了广泛的接受,并逐步取代了原有的非标准的硬件描述语言。在电子工程领域,已成为事实上的通用硬件描述语言。有专家认为,在新的世纪中,VHDL语言将承担起大部分的数字系统设计任务。除了含有许多具有硬件特征的语句外,VHDL的语言形式和描述风格与句法是十分类似于一般的计算机高级语言。VHDL的程序结构特点是将一项工程设计,或称设计实体,分成外部和内部,既涉及实体的内部功能和算法完成部分。在对一个设计实体定义了外部界面后,一旦其内部开发完成后,其他的设计就可以直接调用这个实体。这种将设计实体分成内外部分的概念是VHDL系统设计的基本点。   1.2 vhdl语言出现的背景   一种硬件描述语言广义地说是描述电子实体的语言,比如说逻辑图,电路图等。但是由于一些大规模电路的出现,逻辑图,布尔方程已经不太适用,因此需要在更高层次上描述系统。期间也出现过多种HDL语言,但都没有得到大家的人认可,但是也为vhdl语言的`出现奠定了一定的理论及试验基础。再后来就出现了vhdl语言。Vhdl语言主要针对的是电路设计等方面。密码锁在vhdl中的实现实际上就是vhdl语言在数字电路中的一种应用。   2.以下是几位专家对基于vhdl语言的密码锁设计提出一些看法:   (1). 山东理工大学张雪实验师针对基于vhdl语言的设计提出了数字密码锁的设计的思想,她的观点是这样的:   她就普通的密码锁做了一些总结,提出了一些普通密码锁所存在的缺点,比如说安全性不够高,无法进行密码核对等。因此基于这些普通的密码锁所存在的问题,她提出了数字密码锁的概念,数字密码锁是在实际应用中使用得极其广泛的一种数字电路,他的主要功能时用来对某些重要物品进行加密保护,目的是避免无权人员使用某些设施或进行越权操作。她在文章中介绍的这款密码锁主要完成上锁,密码输入,密码核对,开启电锁,密码修改等功能。详细说明了该数字密码锁的内部结构及其主要功能,讲述了数字密码锁的模块划分极其工作流程。在该数字电路设计中,采用了自顶向下的设计方法,主要目的是对数字系统进行模块划分,这样可以将设计简化成相对简单的模块设计,不同的模块完成数字系统中某一部分的具体功能。最后还对整个密码锁的实现过程做了整体的仿真效果,仿真反馈的结果可以验证程序设计的可行性与可靠性。该数字密码锁的设计过程表明,用vhdl语言可以快速,灵活的设计出符合各种要求的数字密码锁,而且操作简单,稍加修改就可以改变密码的位数,增强其安全性,且很容易做成ASIC芯片,使设计过程达到高度自动化。   (2).湖南大学胡红艳工程师针对基于VHDL语言的电子设计又提出了关于智能密码锁设计的观点,她提出的设计理念如下:   随着社会物质财富的日益增长,安全防盗已成为全社会的问题,弹子锁由于结构上的局限已难以满足当前社会管理和防盗要求,电子密码由于其自身的优势,越来越受到人们的青睐,但是目前使用的电子密码锁大部分是基于单片机用分离元件实现的,其成本较高且可靠性不能得以保证。基于此她介绍了一种利用EDA技术和VHDL语言,在MAX+PLUS2环境下设计的一种新型的智能密码锁,首先针对智能密码锁的设计提出了一些要求,即该智能密码锁的密码初始化,密码设定,密码修改以及输入密码的次数进行了严格的规定。然后又介绍了该智能密码锁的总体结构以及结构中所用控制模块的简单工作原理,最后还对该智能密码锁进行了误差分析。设计的这种新型的智能密码锁具有密码预置和误码报警等功能,用一片FPGA芯片实现,从而大大简化了系统结构,降低了成本 提高了系统的保密性和可靠性。这款智能密码锁具有体积小,功耗低,价格便宜,安全可靠,维护何升级度十分方便等优点,因此提出它具有较好的应用前景。   (3).西南交通大学的专家曹建国针对基于VHDL语言的电路设计提出了电子密码锁的设计与实现,他的见解如下:   针对以前的数字密码锁和智能密码锁中锁存在的以下问题,他提出了一些新的观点,比如说密码的输入一般采用机械式何触摸式两种键盘,机械式键盘易产生抖动问题,抖动会造成帧丢失或出错,这些都会降低图像或声音的质量。因此他又提出了可以在系统中加入抖动消除电路的思想。他介绍的是一种基于VHDL设计一种数字电子密码锁的原理何方法,该电子密码锁所用的开发工具为ISE,还用了仿真工具ModelismSE。首先对该电子密码锁的功能进行了描述,主要达到以下的五个功能:数码输入,数码清除,密码激活,密码修改,电锁解除。接着提出了他的设计思路极其原理,对密码如何输入,输出及修改的过程都做了详细的介绍并且还做了图形分析。他提出了以 DSP/BIOS操作系统为软件架构,以 DM642为核心构成了单芯片的多媒体嵌入式硬件平台,采用了最新的 H.264视频压缩算法和基于RTP/RTCP协议的流媒体实时传输技术,对网络带   宽的变化具有较强的自适应能力。设计该电子密码锁的过程中所开发的这个系统实现了整个系统的高度集成,开发成本低,并在满足实时传输的同时还提供了很高的图像显示质量,具有良好的发展前景。   (4)徐州建筑职业技术学院教师刘燎原通过实例来说明利用VHDL 语言实现数字系统的过程。以下是她用VHDL语言实现了汉明码的编码和译码的原理以及部分汉明码的编码源程序:   汉明码是在原编码的基础上附加一部分代码,使其满足纠错码的条件。它属于线性分组码,由于汉明码的抗干扰能力较强 ,至今仍是应用比较广泛的一类码。汉明码可以用数字门电路或移位寄存器等硬件电路来实现 ,但硬件电路搭接电路较复杂且易存在干扰。因此她介绍了采用 VHDL 语言来实现汉明码的编码和译码过程。   下面是她给出的汉明码的编码及译码源程序:   编码源程序:   LIBRARYieee;   USE ieee. std_logic_1164. ALL ;   ENTITY hamenc IS   PORT (datain : IN BIT_VECTOR 0 TO 3) ;   hamout : OUT BIT_VECTOR (0 TO 7)) ;   END hamenc;   ARCHITECTURE ver2 OF hamenc IS   SIGNAL p0 , p1 , p2 , p4 : BIT;   BEGIN   p0〈= (datain( 0) XOR datain( 1) )XOR datain( 2);   p1〈= (datain( 0 )XOR datain( 1 ) )XOR datain (3);   p2〈= (datain (0) XOR datain( 2)) XOR datain (3 );   p4〈= ( datain( 1) XOR datain (2)) XOR datain (3) ;   hamout (4 TO 7)〈= (p0 , p1 , p2 , p4) ;   hamout( 0 TO 3)〈= datain( 0 TO 3);   END ver2;   译码源程序:   LIBRARYieee;   USE ieee. std_logic_1164.ALL ;   ENTITY hamdec IS   PORT( hamin : IN BIT_VECTOR( 0 TO 7 ); ———d0 d1 d2 d3p0 p1 p2 p4   dataout : OUT BIT_VECTOR (0 TO 3 ); ———d0 d1 d2 d3   sec , ded , ne : OUT BIT) ; ———diagnostic outputs   END hamdec;   ARCHITECTURE ver1 OF hamdec IS   BEGIN   PROCESS( hamin)   VARIABLE syndrome : BIT_VECTOR (3 DOWNTO 0) ;   BEGIN   syndrome (0) : =((((((( hamin( 0) XOR hamin( 1)) XOR hamin   (2)) XOR hamin (3)) XOR hamin( 4)) XOR hamin (5)) XOR hamin( 6 )) XOR hamin (7)) ;   syndrome (1) : = (((hamin(0) XOR hamin (1) XOR hamin (3)XOR hamin( 5)) ;   syndrome (2) : = (((hamin (0) XOR hamin(2 )XOR hamin (3)XOR hamin (6)) ;   syndrome (3) : =((( hamin (1) XOR hamin (2) XOR hamin (3)XOR hamin (7)) ;   IF (syndrome =“0000”) THEN   ne〈=‘1";   ded〈=‘0";   sec〈=‘0";   Dataout( 0 TO 3) 〈= hamin( 0 TO 3) ;   ELSIF (syndrome (0) =‘1") THEN   ne〈=‘0";   ded〈=‘0";   sec〈=‘1";   CASE syndrome( 3 DOWNTO 1) IS   WHEN“000”|“001”|“010”|“100”=〉   Dataout( 0 TO 3 )〈= hamin( 0 TO 3 ); -   WHEN“011”=〉dataout( 0)〈= NOT hamin (0 );   Dataout(1 TO 3) 〈= hamin (1 TO 3) ;   WHEN“101”=〉dataout (1) 〈= NOT hamin( 1) ;   Dataout( 0) 〈= hamin (0) ;   dataout (2 TO 3) 〈= hamin( 2 TO 3) ;   WHEN“110”=〉dataout( 2) 〈= NOT hamin (2) ;   Dataout( 3 )〈= hamin( 3) ;   Dataout( 0 TO 1) 〈= hamin( 0 TO 1) ;   WHEN“111”=〉dataout (3) 〈= NOT hamin( 3) ;   Dataout( 0 TO 2) 〈= hamin (0 TO 2) ;   END CASE;   ELSIF (syndrome( 0 )= ‘0" AND (syndrome( 3DOWNTO 1) / =“000” )THEN   ne〈=‘0";   ded〈=‘1";   sec〈=‘0";   dataout (0 TO 3 )〈=“0000”;   END IF;   END PROCESS;   END ver1;   该程序使用 Quartus Ⅱ软件进行逻辑综合功能模拟与定时分析。通过时序仿真和下载后 ,观察波形并进行实际验证 ,可以正确编码译码 ,符合设计要求。本文介绍的基于 VHDL 语言的汉明码的编码和译码实现 ,简化了硬件的开发和制作过程 ,易于仿真测试和修改 ,加强了系统的灵活性和抗干扰性 ,在实际中有一定的应用。   结束语:   从上面所举的各位专家所提出的各种观点可以看出,基于VHDL 语言所设计出来的多款密码锁, 均使用串行电路,这样用一片FPGA芯片就可以实现实现, 从而大大简化了系统结构。提高了系统的保密性和可靠性。VHDL语言在数字电路设计中 ,自顶向下的设计方法的主要思想是对数字系统进行模块划分 ,这样可以将复杂的设计简化成相对简单的模块设计 ,不同的模块用来完成数字系统中某一部分的具体功能统, 其升级与改进极其方便。用VHDL语言设计出来的密码锁具有结构较简单,成本较低,操作方便,易于维护和修改等优点。缺点是虽然它的成本较低,但是由于使用了电子芯片,因此现在还是只能在大中型企业中使用,还不能普及到我们的生活当中来。   参考文献:   [1] 刘钰,张有志.一种用VHDL语言设计的数字密码锁 [J].信息技术与信息化 ,2004,(04)   [2] 胡红艳,李旭华.基于VHDL语言的智能密码锁设计 [J].微计算机信息 ,2006,(14) .   [3] 曹建国,王威,王丹.一种基于VHDL的电子密码锁的设计与实现 [J].安防科技 ,2007,(02) .   [4] 周瑗,杨丽华.用VHDL自顶向下设计数字密码锁 [J].北京化工大学学报 ,2000,(02) .   [5] 尤国平,陈新,林伟,黄世震.基于VHDL语言的串行密码锁设计 [J].国外电子测量技术 ,2005,(09) .   [6] 谢海良,孔云龙.基于EDA技术的电子密码锁电路设计 [J].漯河职业技术学院学报 ,2007,(04)   [7] 许琦.基于FPGA的电子密码锁的设计 [J].科技信息(学术版) ,2006,(10)   发展前景   科技的日新月异,使得电子技术的广泛应用和快速发展成为了可能。电子技术在以后的日子,有其广泛的发展前景。   智能化和人性化   电子技术的智能化,是电子技术具有类似人的智能,可以依据一定的程序,进行有效的判断并能做出决定。随着模糊控制、纳米技术等人工智能技术的快速发展和推广,电子技术产品的智能化将成为主要特性;智能化的发展使得电子技术可以更加的人性化。人性化是电子技术的一个特性,人是电子技术产品的使用者,所以赋予电子技术需要满足人性化的需求。因此,电子技术产品不仅要具有最优性能,还要加强人们对色彩、造型、舒适度等方面的研究,满足人们对电子技术产品人性化需求。   集成化   电子系统集成系统,应该包含有电子子系统和电力应用系统两个部分。其中,电力电子系统的集成在于建立一系列的标准芯片或者是模块,通过集成满足用户需要的智能化应用系统。通过电子技术的集成,使得电子技术产品结构优化,性能达到最大化。   网络化   随着网络成为人们日常生活中非常普及的一种工具,远程控制和监控技术得到迅速发展,从而使电子技术也顺应网络化的发展趋势,网络化特性更加的明显。   综上所述,新技术的快速发展,使电子技术在不断的发展,这也导致电子技术在人们生活中更多的应用,满足人们的需求,也促进社会建设和经济发展。可以断言,电子技术必将成为信息产业与传统产业之间的重要环节和桥梁,也必将为大幅度节省、降低材料损耗、提高生产效率、加速经济发展提供重要的技术支撑。 ;
2023-07-19 15:13:411

蛋糕的英文单词?

  蛋糕是一种古老的西点,一般是由烤箱制作的,烘烤后制成一种像海绵的点心。那么,你知道怎么写吗?现在跟我一起学习关于蛋糕的英语知识吧。   蛋糕的英文释义   cake   tabnab   angel cake   angel food cake   trifle   Swiss roll   蛋糕的英文例句   这些别有风味的小蛋糕是该地的特产。   These *** all spiced cakes are a peculiarity of the region.   请给蛋糕多加点香料。   Please add more spices to the cake.   他点燃了生日蛋糕上的小蜡烛。   He lit the candles on the birthday cake.   我们做的蛋糕不大成功。   The cake we made was somewhat of a failure.   你要避免吃甜食,例如蛋糕、巧克力、糖和冰淇淋。   You must avoid sweet foods, e.g. cake, chocolate, sugar and ice cream.   蛋糕发起来了。   The cake bulked up.   他递给我五分之一个蛋糕。   He passed me one fifth of the cake.   我们很快就吃完了巧克力蛋糕。   We soon despatched the chocolate cake.   蛋糕倒扣在专用的蛋糕硬纸板或是大盘子上,轻拍碗具,取出蛋糕。   Tap gently and ease the bowl off of the cake.   他喜欢这个蛋糕还是那个蛋糕?   Does he like this cake or that cake?   她把蛋糕烤焦了。   She scorched the cake.   他吃了几口蛋糕。   He tasted of the cake.   他们在几分钟内便吃光了那块大蛋糕。   They have knocked off the whole cake in a few minutes!   只有一块蛋糕,但我们把它切成两半儿。   There was only one piece of cake, but we cut it in two.   就像这块蛋糕。   Like this cake.   我有一块儿蛋糕,然后把它吃掉。   I have a cake, then I eat it.   但当我看到一个那样的蛋糕......   But when I see a cake like that . . .   蛋糕的英语句子带翻译   好的蛋糕让大家变得跟猪一样所以为什么不跟着潮流走呢?   Good cake tends to make everyone pig out, so why not go with the flow?   不仅仅是无脂食品,还有食品店里出售的许多低脂蛋糕,饼乾和甜点等都是如此。   Not only that, but there are plenty of low fat cakes, cookies and desserts sold at every grocery store.   蛋糕有层次。   Cakes have layers.   今天是我的生日.在美国,有这样一个传统:当你吹灭生日蛋糕上的蜡烛的时候,就可以许一个愿望.   It is now my birthday. In the US, we have a tradition that when you blow out thecandles on your birthday cake, you should make a wish.   是的,我吃了一些蛋糕。   Peter: Yes, I ate some cake.   你不可能就这样来了,连巧克力蛋糕都不吃一块吧!   But you can"t e and not have the chocolate cake!   我希望我能向你展示一些我的同班同学做的好看的奶油甜酱蛋糕。   I wish I could show you some of the pretty buttercream cakes my clas *** ates have done!   我已经吃了4块蛋糕,但是我还要以块。   I have eaten 4 cakes, but I still want another.   我记得我有一次和前男友坐在卧室的地板上吃蛋糕和布丁酱。   I remember sitting on my bedroom floor eating cake and pudding sauce with my ex.   我得到的蛋糕差不多是最大的一块。   The piece of cake I got was almost the largest.   我们有奶油生日蛋糕.十元一个.你要来点吗?   We have cream birthday cakes.ten yuan each. Do you like it?   她会不停地吃蛋糕,如果我们不阻止她的话。   She"ll eat cake as long as we let her.   事实上,我爱我的年龄,因为每一个生日不仅仅意味着礼物和巧克力蛋糕。   In fact, I love my age, because every single birthday means more than justpresents and chocolate cake.   于是,我们打算离家出走,去某个地方——在那里,母亲们不会对她们的孩子那么苛刻,而且像我们这么乖的孩子可以随心所欲地吃馅饼、蛋糕和曲奇饼。   So, we were running away to a place where mothers were not so mean to theirchildren, and good kids like us were able to have pie and cake and cookieswhenever they wanted. 1.蛋糕的经典广告词 2.生日蛋糕用英语怎么说 3.蛋糕的英文是什么 4.推销蛋糕的经典广告词 5.做生日蛋糕的英文 6.芝士蛋糕广告宣传词
2023-07-19 15:13:381

黑客主要干什么呢

cvwgrttttttttttttttttttttttttttttttttttttttGAOHUI
2023-07-19 15:13:385

铁的性质是什么?

铁(Ferrum)是一种金属元素,原子序数为26,铁单质化学式:Fe,英文名:iron。平均相对原子质量为55.845。纯铁是白色或者银白色的,有金属光泽。熔点1538℃、沸点2750℃,能溶于强酸和中强酸,不溶于水。铁有0价、+2价、+3价、+4价、+5价和+6价,其中+2价和+3价较常见,+4价、+5价和+6价少见。
2023-07-19 15:13:342

英文题,大神求教了!

1. I went to a Thai restaurant last night.(to ask about place)询问在哪里(地点)Where you went last night?2. Tony is the chef of this restaurant.(to ask about the person)询问人Who is the chef of this restaurant?3. I"d prefer ice-cream to cake.(to ask for a selection between two things)询问选择那一个?Which do you prefer?ice-cream or cake?4. I like the steak medium done.(to ask about the way in which it is done)询问牛排怎么吃?What would you like your steak?5. There is chicken in the soup.(to ask about the thing)询问汤里是什么?What is in the soup?6. This is my sister"s membership card. (to ask about possession)询问是谁的?Whose membership card is it?希望能帮到你
2023-07-19 15:13:311

紧急求救高三英语高手

1.简单地说,separeate事认为分开
2023-07-19 15:13:305