若限于用同一种正多边形磁砖镶嵌（要求镶嵌的正多边形的边必须与另一正多边形的边重合），则不能镶嵌成一个平面的正多边形磁砖的

完整的表述应为：如果命题“如果A,那么B”为真（或假设为真）,那么“若前件为真则后件为真,若后件为假则前件为假”.因为命题“如果A,那么B”为真,只有两种情况,一种是“A,B都为真”,第二种是“A为假,B可真可假”.由此看出,如果A为真,且“如果A,那么B”为真,只能B为真；而若B为假,为了使“如果A,那么B”为真,必须有A为假.

English Classic America every night reading the text" is the contents of a new,uniquely designed boutique night reading the selected articles are the most popular classics of Western United States and the text,including the inspirational stories,humor,essays,paradox,poetry,etc.both interesting,there are enlightening; both broaden their horizons,but also can enhance the nature of mind.
"English Classic America every night reading of the text" fully meets the interest of young readers.Authentic language of the article,readable,and the length is moderate,particularly suitable for high school and college students to read.Then we each article matching the article in line with the motto,to achieve the mentioned
L,and the role of the eye-dotting; we also each article with terms of reference translations and annotations,in order to help the reader understand,comprehend text.
"English Classic off every night reading of the text," is to raise your interest in learning English and passion to inspire you out of adversity and defeat the best the spirit of self-readers.This is an unparalleled boutique will give you a reading may be boring lives fresh air,the genial sunshine and new hope,even from this change your life.
To develop good reading habits of the night,the most valuable is that perseverance.
Bedtime each day,using half an hour or so devote themselves to read English text of the United States to make English learning a pleasurable experience in mind.Shangdu heart to those who inspired life,inspired inspiration,simile,reasonable Pian Pian Mei-wen,will bring you unexpected gains and joy.

“早”就是早起的鸟儿有虫吃,就是笨鸟先飞,就是把机会给不虚耗光阴或者珍惜光阴的人.

2NH3.H2O+H2SO4===(NH4)2SO4+2H2O

All rights, ownership, interest and the rights of intellectual property ---but copyrights, patents, technical secrets, commercial secrets and others are not included ---arised from the pursuance of this agreement belongs to A, and A shall have the ownership exclusively, no matter the developer is A or B .
---------------------------------
淘宝译嘉翻译工作室

y=(6x^2+4x+2+1)/(3x^2+2x+1)=2+1/(3x^2+2x+1)
3x^2+2x+1 开口向上 在对称轴处有最小值 对称轴x=-1/3 ∴最小值=2/3
原式有最大值2+3/2=7/2

English：Writing is an important part of Chinese in Chinese,has the important status.People need to express feelings,summarizing the experiences and lessons to writing,narrative writing,anyway...to events,study,work and life are inseparable from writing.And good writing level,first needs to strengthen recognition of the importance of writing ability,secondly,the need to improve the innovative education and training methods,strong interest in writing,rich writing inspiration,ability to observe things by creative thinking,and improve our writing skills and ascend imagination in development,rich times...their cultural knowledge and experience in all kinds of materials,advanced experience between better summary,expresses the life.
中文:写作是汉语的重要组成部分,在汉语中有举足轻重的地位.人们抒发感情需要写作,总结经验教训需要写作,记叙事件需要写作……,总之,无论学习、工作、生活都离不开写作.而好的写作水平,首先需要具备强化对写作能力重要性的认识,其次需要完善和创新教育培训手段,具有浓厚的写作兴趣、丰富的写作灵感、观察事物的能力、利用创造性的思维提升想象力、提高写作技巧……时代在发展,丰富自己的文化知识和社会阅历,在各类素材间更好地总结先进经验,抒发美好的生活.

LION demanded the daughter of a woodcutter in marriage. The
Father, unwilling to grant, and yet afraid to refuse his request,
hit upon this expedient to rid himself of his importunities. He
expressed his willingness to accept the Lion as the suitor of his
daughter on one condition: that he should allow him to extract
his teeth, and cut off his claws, as his daughter was fearfully
afraid of both. The Lion cheerfully assented to the proposal.
But when the toothless, clawless Lion returned to repeat his
request, the Woodman, no longer afraid, set upon him with his
club, and drove him away into the forest.

1.90/(3/10)=300人
2.(20-5)/5=3倍

解题思路：（1）根据信息中蔬菜经过高温烹调，VC将被破坏殆尽去分析回答．
（2）根据维生素C在酸性条件下不易被破坏的性质回答．
（3）根据复分解反应“两交换，价不变”的特点及草酸（H₂C₂O₄），会与体内的钙盐（CaR，R表示酸根）发生复分解反应，生成不能吸收的沉积物草酸钙的信息回答．
（4）根据亚硝酸盐因有氧化性中毒的原理和维生素C利用还原性解毒原理回答

（1）蔬菜经过高温烹调，VC将被破坏殆尽，说明它的热稳定性差．
（2）维生素C在酸性条件下不易被破坏，因此其水溶液呈酸性，pH＜7；在凉拌黄瓜时候可以加入酸性调料可保持维生素C不被破坏，如加食醋．
（3）草酸（H₂C₂O₄），会与体内的钙盐（CaR，R表示酸根）发生复分解反应，生成不能吸收的沉积物草酸钙，根据复分解反应的特点，还应生成某酸H₂R，所以方程式为：H₂C₂O₄+CaR═CaC₂O₄↓+H₂R．
（4）亚硝酸盐不中毒机理可以理解为它的氧化性将血红蛋白中的Fe（+2价）元素氧化成+3价．利用VC的还原性进行解毒，是把它由+3价又还原为+2价，所以结果Fe的价态为+2价．
故答案为：（1）差；（2）小于；食醋；（3）H₂C₂O₄+CaR═CaC₂O₄↓+H₂R；（4）+2价．

点评：
本题考点： 生命活动与六大营养素；溶液的酸碱性与pH值的关系；有关元素化合价的计算；氧化反应；书写化学方程式、文字表达式、电离方程式；常见中毒途径及预防方法．

考点点评： 化学来源于生产、生活，又服务于生产、生活，因此与生产、生活实践相关的化学知识，在中考中出现的频度很高，学习过程中要引起重视．

2.243:0.234:2*10^4:0.2

牛顿1665年发明微积分、发现二项式定理；1687年创建近代力学.麦克斯韦1864年创建电磁场理论.爱因斯坦1905年创建狭义相对论,提出光量子假说；1915年创建广义相对论.普朗克1900年提出能量子假说.玻尔1913年提出原子量化轨道模型.海森伯1925年创建矩阵力学.德布罗意1924年提出物质波概念.薛定谔1926年创建波动力学.杨振宁、李政道1956年发现弱相互作用下的宇称不守恒现象.

小题1:《傅雷家书》 生活艺术修养
小题1:醉打蒋门神：武松因杀了西门庆而被发配孟州。（1分）孟州的小管营施恩对武松礼遇有加.施恩告诉武松与蒋门神争夺快活林失利一事，武松要为施恩报仇，夺回快活林。 武松来到快活林闹事，蒋门神大怒，跳出来与武松打斗。（2分）武松几拳就将蒋门神打倒，蒋门神只好答应把快活林酒店归还施恩。（1分）
黑旋风斗浪里白条：宋江发配江州，李逵为找下酒鱼大闹渔民，放跑了渔户的鱼。（1分）没料到渔民的主人张顺赶来，和李逵打了起来，陆地上张顺打不过黑旋风，就到水里打。李逵不知张顺是水中英雄，被浪里白条用水灌了个饱。（2分）幸亏戴宗制止，才救了李逵一条性命。（1分）


小题1:本题考查学生对文学常识的认知能力。根据《傅雷家书》的理解来解答此题即可。
小题1:本题考查学生概括名著精彩情节的能力。在阅读名著时，除了要识记一些基本的文学常识，还要注意对作品中的一些精彩情节进行细读。在概括时要注意故事情节基本准确完整，时间、地点、人物以及事件的起因、经过、结果清楚即可。

您好!
第三天运出前有（14+5）×2=38吨
第二天运出前有（38+5）×2=86吨
故原有{【（14+5）×2+5】×2+5}×2=182吨.
如果您感到满意的话,请您适当加分!谢谢!

①图:一个小男孩
A:What is his name?
B:His name is Jim.
A:____ ____ is he?
B:What____is____he
B:He is in ____
②图：一个数学老师在上课
A:What does he do?
B:He is a teacher
A:What is he doing ?
B:He is teaching students about Maths.
③图：一个女孩正开着一辆汽车
A:____does she ____?
B:She is a____
A:What is she ____?
B:She is ____
④图：三个女孩,一个女孩像在跳舞
A:____are they ____?
B:They are ____
A:____do they ____?
B:At ____

给的数据不全啊~~

盐酸36%
硝酸98%
NaOH 1Kg固体明显过量
显碱性.
盐酸：硝酸=3:1应该是物质的量之比.

散度定理我还记得,不过斯拖鞋克什么的早就忘了

H2一般加热,C与CO一般高温
但CO与CUO是加热

本体和喻体是针对比喻句来说的.例子中本体是秦国,喻体是老虎,即将秦国比作老虎或用老虎比喻秦国.不能说喻体和本体只限于名词,但喻体和本体确实是名词

示例：花间一壶酒，独酌无相亲；三杯两盏淡酒，怎敌他晚来风急？（答案不唯一）

意思包括某范围的东西包括在内但又不仅仅包括已经包括进来的这些.
例如别人问你喜欢看什么类型的电影,你说包括但不限于科幻,恐怖.意思就是你不仅仅喜欢这两种,也可能喜欢像励志,动作等类型的电影.

古英语的由来 早期日耳曼人西支部落（盎格鲁族、撒克逊族、朱特族和弗里西族）移民到英格兰,英语就是从他们的语言中变化继承下来.据《盎格鲁撒克逊编年史》记载,公元449年左右 ,不列颠群岛国王伏提庚（Vortigern）邀请“盎格鲁亲戚们”来帮助他对抗皮克特人,于是他赐予盎格鲁族东南部的领土作为回报.随后他又进一步寻求支援,撒克逊 族、盎格鲁族与朱特族人便纷纷前来.《编年史》记载,最终这些“移民”建立了七个王国：诺森伯利亚、麦西亚、东盎格利亚、肯特、埃塞克斯、苏塞克斯、威塞克斯.日尔曼人入侵后,统治了当地的凯尔特语民族,本地语言主要于苏格兰、威尔士、康瓦耳与爱尔兰岛存活了下来.这些入侵者的语言逐渐形成了“古英语”,与近代弗里西语极为 相像.English（英格兰人、英语）、England（英格兰）和East Anglia（东盎格利亚）这三个词是分别从描绘盎格鲁族的词汇发展而来：Englisc、 Angelcynn、Englaland.公元九世纪,斯堪的纳维亚人大 规模侵入英国北部.九世纪末,入侵者几乎占领了整个英国的东半部.斯堪的纳维亚人说的是北日尔曼语.北日尔曼语和西日尔曼语的差别不是很悬殊.斯堪的纳维亚人入侵的结 果使大量斯堪的纳维亚语（以古诺斯语 Old Norse 为代表）的词汇进入了古英语的词汇.古诺斯语和古英语有很多同义词汇,结果古诺斯语词在英语词汇里往往取古英语词而代之.1066年诺曼征服后三百年内,英格兰的国王只讲法语.因此一大批法语词汇进入了古英语,古英语本身也失去了大部分曲折变化,形成中古英语.1500年左右的元音大推 移将中古英语变形为近代英语.古英语最著名的文学作品是《贝奥武夫》,中古英语则是《坎特伯里故事集》英语的演变 英语（English）属于印欧语系中日耳曼语族下 的西日耳曼语支,由古代从欧洲大陆移民大不列颠岛的盎格鲁、撒克逊和朱特部落的日耳曼人所说的语言演变而来,并通过英国的殖民活动传播到世界各地.由于在历史上曾和多种民族语言接触,它的词汇从一元变为多元,语法从“多屈折”变为“少屈折”,语音也发生了规律性的变化.根据以英语作为母语的人数计算,英语可能是 世界上第三大或第四大语言（1999年统计为380,000,000人）,但它是世界上最广泛的第二语言.世界上60%以上的信件是用英语书写的,50%以上的报纸杂 志是英语的.上两个世纪英国和美国在文化、经济、军事、政治和科学上的领先地位使得英语成为一种准国际语言.英语是联合国的工作语言之一.与英语最接近的无疑是弗里 西语,这种语言现在仍然在荷兰北部弗里斯兰省中使用,大约有50万个使用者.一些人认为低地苏格兰语是与英语接近的一个独立语言,而一些人则认为它是英语的一个方言.苏格兰语、荷兰东部和德国北部的低地撒克逊语与英语也很接近.其他相关的语言包括荷兰语、南非荷兰语和德语.诺曼人于11世纪征服英国,带来大量法语词汇,很大程度地 丰富了英语词汇.近代英语在莎士比亚所处的时期开始繁荣,一些学者将之分为早期近代英语与后期近代英语,分界线为1800年左右.随着不列颠对全世界大部分地区的占领 和殖民,当地语言也很大程度上影响了英语的发展.英语的地理分布 英语在下列国家和地区是第一语言：澳大利亚、巴哈马、爱尔兰、巴巴多斯、百慕大、圭亚那、牙买加、新 西兰、圣克里斯多福及尼维斯、特立尼达和多巴哥、英国和美国.目前世界上把英语作为第一语言(本族语)的人口约有 3亿.英语在下列国家和地区中是主要的语言,这些 国家包括巴西（连同葡萄牙语）、加拿大（连同法语）、多米尼克、圣路西亚和圣文森及格瑞那丁（连同法语）、密克罗尼西亚联邦、爱尔兰（连同爱尔兰语）、利比里亚（连同 非洲语言）、新加坡、马来西亚和南非（连同南非荷兰语和其他非洲语言）.作为第二语言(即不是本族语,但为所在国通用语)使用的人口约有2.5亿.英语是下列国家和地区的官方语言（之一）,但不是本地语言：斐济、加纳、冈比亚、香港、印 度、基里巴斯、莱索托、肯尼亚、纳米比亚、尼日利亚、马耳他、马绍尔群岛、巴基斯坦、巴布亚新几内亚、菲律宾、所罗门群岛、萨摩亚群岛、塞拉利昂、斯威士兰、坦桑尼亚 、赞比亚和津巴布韦.把英语作为外国语使用的人约3～5亿.另外,英语在欧洲及日本是最普遍作为外语来学习的语言（32.6％）,接着是法语、德语和西班牙语.

不知道你问事么,

His monthly income comes to 10.000 yuan.
很高兴为你解答!
请及时采纳哦!多谢你的问题!

意味深长
不拘一格

将螺栓等级提高到8.8级.
在传递扭矩许可的情况下螺栓等级提高到10.9级.

车水马龙 车象流水,马象游龙.形容来往车马很多,连续不断的热闹情景.
马龙车水 x09马象游龙,车象流水.形容车马往来不绝.
马水车龙 x09犹言车水马龙.形容来往车马很多,连续不断的热闹情景.
马足龙沙 x09指驰骋边疆,扬威域外.龙沙,塞北沙漠地方.
马如游龙 x09形容人马熙熙攘攘的景象.
骥子龙文 x09骥子：千里马；龙文：骏马名,旧时多指神童.原为佳子弟的代称.后多比喻英才.
龙马精神 x09龙马：古代传说中形状象龙的骏马.比喻人精神旺盛.
龙神马壮 x09谓像骏马一样的有精神.
神龙马壮 x09比喻身体健壮、气宇轩昂.
这里好多变式,但每个都是成语

那主要看对“言”这个字额定义了.如果将“言”看作是语言的意思,即说的话来讲的话,那就是对的.广义上来看,一个人的行为也是体现一个人“言”的方式,那这句话就是错的.从《论语》对于“言”的定义来看,一个人的“言”不仅仅包括了他的语言,也包括了他的行为,所以这句话从《论语》的角度来说,是错的.

德国人一般说German，复数用Germans，很少用Germanese。
The German is a great people.

解题思路：（1）由题意可知：从左到右各长方形的高的比为1：4：3：6，则从左到右各组的频率之比为1：4：3：6；又知第3组的频数为12，则第一组的频数为12×[1/3]=4，第二组的频数为12×[4/3]=16，第四组的频数为12×[6/3]=24；则第5组的频率为16÷（4+16+12+24+16+8）=0.2，第6组的频率为8÷（4+16+12+24+16+8）=0.1；第一组的频率为4÷80=0.05；
（2）由（1）可知：本次活动中参评的作品有4+16+12+24+16+8=80篇；
（3）从第一组到第六组的频数分别为4，16，12，24，16，8；则第四组的频数最大，所以上交的作品最多，共有24篇．

（1）图如右边：

（2）本次活动中参评的作品有4+16+12+24+16+8=80篇；

（3）第四组的频数最大，所以上交的作品最多，共有24篇．

点评：
本题考点： 频数（率）分布直方图．

考点点评： 本题考查频数及频率的计算以及绘制直方图的能力．

Since the childhood staff to the department supervisor,again to general manager,I am through ceaseless efforts to realize self-worth.
1.Although this is just a temporary job,but I still maintained ambition.
2.For talents,the application of limited to collect is far insufficient,the important is not only for talents should be good at identifying its advantages,and dare to boldly use to let it show your talents.

《赤兔马之死》--“满分作文”共欣赏
建安二十六年,公元221年,关羽走麦城,兵败遭擒,拒降,为孙权所害.其坐骑赤兔马为孙权赐予马忠.一日,马忠上表：赤兔马绝食数日,不久将亡.孙权大惊,急访江东名士伯喜.此人乃伯乐之后,人言其精通马语.马忠引伯喜回府,至槽间,但见赤兔马伏于地,哀嘶不止.众人不解,惟伯喜知之.伯喜遣散诸人,抚其背叹道：“昔日曹操做《龟虽寿》,‘老骥伏枥,志在千里.烈士暮年,壮心不已’,吾深知君念关将军之恩,欲从之于地下.然当日吕奉先白门楼殒命,亦未见君如此相依,为何今日这等轻生,岂不负君千里之志哉?” 赤兔马哀嘶一声,叹道：“予尝闻,‘鸟之将死,其鸣也哀；人之将死,其言也善.’今幸遇先生,吾可将肺腑之言相告.吾生于西凉,后为董卓所获,此人飞扬跋扈,杀少帝,卧龙床,实为汉贼,吾深恨之.” 伯喜点头,曰：“后闻李儒献计,将君赠予吕布,吕布乃天下第一勇将,众皆言,‘人中吕布,马中赤兔.’想来当不负君之志也.” 赤兔马叹曰：“公言差矣.吕布此人最是无信,为荣华而杀丁原,为美色而刺董卓,投刘备而夺其徐州,结袁术而斩其婚使.‘人无信不立’,与此等无诚信之人齐名,实为吾平生之大耻!后吾归于曹操,其手下虽猛将如云,却无人可称英雄.吾恐今生只辱于奴隶人之手,骈死于槽枥之间.后曹操将吾赠予关将军；吾曾于虎牢关前见其武勇,白门楼上见其恩义,仰慕已久.关将军见吾亦大喜,拜谢曹操.操问何故如此,关将军答曰：‘吾知此马日行千里,今幸得之,他日若知兄长下落,可一日而得见矣.’其人诚信如此.常言道：‘鸟随鸾凤飞腾远,人伴贤良品质高.’吾敢不以死相报乎?” 伯喜闻之,叹曰：“人皆言关将军乃诚信之士,今日所闻,果真如此.” 赤兔马泣曰：“吾尝慕不食周粟之伯夷、叔齐之高义.玉可碎而不可损其白,竹可破而不可毁其节.士为知己而死,人因诚信而存,吾安肯食吴粟而苟活于世间?”言罢,伏地而亡.伯喜放声痛哭,曰：“物犹如此,人何以堪?”后奏于孙权.权闻之亦泣：“吾不知云长诚信如此,今此忠义之士为吾所害,吾有何面目见天下苍生?” 后孙权传旨,将关羽父子并赤兔马厚葬.
简评：读罢此篇临场作文,令人拍案称奇.一是故事新奇.作者以熟谙三国故事为基础,编撰了赤兔马为诚信而殒身的感人故事,其想象力实在丰富.二是立意高远.文章将赤兔马拟人化,让它在同伯喜的对话中,显示对关羽与董卓、吕布两类人物的褒贬,实现了“真英雄必讲诚信”的主题；且以“鸟随鸾凤飞腾远,人伴贤良品质高”一联,“物犹如此,人何以堪”一句,抒写了人生当择善而从、唯诚信是瞻的志向,使文章的立意更上层楼.三是语言老到.通篇遣用纯熟的古白话,散整错综,明白畅晓,文采飞扬,这种老到的语言功夫,是众多考生无法望其项背的

（1）因为作者认为梦想体现了对个人利益的追求，而理想却是一种责任，一种事业，一种用献身精力的人类的共同追求，是人生境界的升华。
（2）应该对人生做出长远规划；根据自己的能力、兴趣等实际情况，对自己的理想进行调整，需要自身的能力，提高自身素质等。

这个好像没有这个定律.我唯一想到的有点联系的名词就是负反馈,即结果对输入起阻碍作用；但相对的自然中也有正反馈,事情的结果会加速其发展.比如说放在弧面上的小球.凹弧的小球滚动后可能回到起始点,而放在凸弧上的小球一旦滚动便会越来越快.

1000*（2/7）*7＝2000（元）

这还用问吗?
一个是被限制,一个是不被限制.
你说相同不相同.

意思就是除了这个,还可以有其他的
例如 A的取值包括2-9但不限于2-9.意思就是2-9一定可以是A的取值,但是还可以是除了2-9以外的其他数字

吸热:大多数分解反应 电离 个别化合(CO2+2C=2CO)
放热:大多数化合反应 所有酸碱中和反应 所有燃烧反应 强烈的氧化还原反应
活泼金属与酸或水的反应 个别分解反应(重铬酸铵的分解)

1,3,1,2,1
怎么两个AE

您的问题很简单.百度知道很高兴帮助您解决您提出的问题.原句：我跟他打招呼,他不理我翻译：I told him to say "hello",he ignored me当有人跟我打招呼说“早上好”时,我不能故意不理他/她,而去吸烟.When someone say...

当然也可以认为定义在复数域上不封闭的运算,从而对其进行扩展.只是这样做有何必要目前看不出
其实扩充的复数域就是一种扩充啊,包括了无穷远点.

三角形不是中心对称图形
中心对称图形指的是：绕中心点180°能和原图案重合的平面图形
密铺就是用同一个图形的地砖铺在地上,砖块之间不能有缝隙,如正三角形,直角三角形,正方形,长方形,正六边形（蜂巢就是这种）.这种图形的特点是,外角能被360整除

1,Our First Day in Winter Holiday

The winter holiday began today. The Spring Festival will come soon. So my sister and I decided to help our mother to clean the room.
In the afternoon we began the cleaning. We first dusted the walls. The walls turned white soon, but the tables and floor were covered with dust. Then I cleaned the tables while my sister swept the floor. The room became bright and clean. We were very happy.
Then my sister did some washing. With my help, my sister first washed clothes, then some shoes.
Finally, we finished the work. "What time is it now?" she asked. "Oh, it's six o'clock! It is time for Mum to come home. We must prepare the supper. Be quick!" I said. Just then our mother came in. When she saw the room clean and bright she was very happy. "You are my good daughters!" she said with a smile on her face.
Now I was very tired, but I was very happy, because I had done something tbr my mother.
翻译： 寒假的第一天
今天开始放寒假.春节快到了,我和姐姐决定帮妈妈做一次大扫除.
下午大扫除开始.我们先掸墙上的灰,墙很快变白了,但桌面和地板上布满了灰尘.于是,我抹桌子,姐姐扫地.最后,房间变得干净亮堂了.我们很高兴.
接着,姐姐开始洗衣服,我在一旁帮忙.洗完衣服,姐姐又洗鞋.等全干完了,姐姐问：“几点了?”“哟,6点了!妈妈要回来了.我们得做晚饭了,快!”我说.这时,妈妈进来了.她看见房 间既清洁又明亮,非常高兴.她笑容满面地称赞道：“你们是我的好女儿!”
我虽然很累,但很高兴,因为我为妈妈做了一点事.
注：根据自己的情况可以改一下内容
2,My birthday.
Yesterday was my birthday.I was so happy because all of my friends come to celebrate it with me.They bought me lots of gifts.And my parents cooked delicious food for us.The moment they sung the song happy birthday to you,I could hardly hold my tears.I was moved deeply.Well that was a great birthday part and I grew older.I knew that I should learn to take care of myself and I was not a child any more.That was my birthday.
3,Today I was very happily today! In the morning, it was very fine! Then I climbed the mountain with family, the air on the mountain was very fresh, the flowers plants and trees on the mountain all seemed extremely beautiful. In the afternoon, I went to friend's home to play, the friend entertained me warmly, showed me a lot of books of his , listened to his CD for me , then also asked me to eat a sumptuous dinner. Coming back home in the evening, family and I sat and watched TV together, we were returning and eating the fruit while chatting, the whole family was happy and harmonious!
译文：今天我过得非常开心!早上,天气非常好!于是我和家人一起去登山,山上的空气非常清新,山上的花草树木都显得格外美丽.下午,我去了朋友家玩,朋友热情地招待我,给我看了他的很多书,给我听了他的CD,然后还请我吃了一顿丰盛的晚餐.晚上回到家,我与家人坐在一起看电视,我们还一边聊天一边吃着水果,全家其乐融!
3, A TRIP TO the COUNTRY 乡村游记
One Sunday my mother (Mother) had (made) me take my little young brother to the a trip to the country. She bade me take good care of him.
While we were walking along the road, the sun was shining brightly and the breeze was blowing gently. We saw the beautiful flowers smile (smiling) at us and heard the birds sing (singing) their sweet songs on the trees. The scenery was indeed very pretty (beautiful).
When we felt tired, we returned home. We saw Mother (our mother) wait (waiting) for us at the door.
有一个星期日,我母亲叫我带小弟弟去乡村游历.她吩咐我要好好照料他.
当我们沿着道路行走的时候,太阳灿烂地照耀着,微风轻轻地吹着.我们看见美丽的花儿对我们微笑着,并听见鸟儿在树上唱着悦耳的歌曲,风景实十分美丽.
当我们感觉到疲倦的时候,我们就回家了.我们看见母样正在门口等候我们.
4,I went to the countryside to spend my summer holidays this year. I liked green plants, clear rivers and lovely amimals there.I breathed the fresh air on the mountain and sometimes I went swimming in the river. I kept a diary every day.
I liked not only the scene of the countryside, but also the people there. I helped them to do farm work. I also helped the children in the neighbourhood with their lessons. The children were interested in English. They were good at reading and writing, but did not do well in listening and speaking. I helped them improve their listening and speaking. Their parents thought highly of me. I realized that knowledge is greatly needed in the countryside.
今年我去农村过暑假.我喜欢那儿绿油油的植物,清澈的小河和可爱的动物.我在山上呼吸新鲜的空气,有时在河里游泳.我每天记日记.
我不仅喜欢那里的景色,而且喜欢那里的人.我帮他们干农活,帮助邻家的孩子复习功课.孩子们对英语很感兴趣,他们在读、写方面很好,但听、说不好.我帮助他们提高听、说能力,他们的父母高度赞扬了我.我意识到农村确实需要知识.
5,快乐的暑假生活-Happy Summer Holidays
My summer vacation of this year was very enjoyable. I went to the countryside to spend my summer holidays. It is very beautiful there. There are green plants, clear rivers, lovely animals and kind people. I spent two weeks helping my grandfather do some farm work there. I wrote down what happened in my diary every day.
Besides that, I helped the children in the neighbourhood with their lessons. I helped them read English and improve their spoken English. Their parents thanked me for this.
今年的暑假生活非常愉快.我去农村过暑假.那儿非常美丽,有绿色的植物,清澈的小河,可爱的动物和善良的人们.在那里的两周中我帮爷爷干了些农活.每天我在日记中记下所发生的事情.
除了这些,我还帮助邻居家的孩子做功课.我帮他们读英语,使他们的口语有所提高.他们的父母为此很感激我.
6, I looked forward to summer holiday every year. Today, I went to Shen zhen for my holiday, which is also a city of seashore like Haikou. I enjoyed having a walk along the beach after supper or having a swim in the afternoon. The sky is blue, the air is fersh. Wherever you go, You can always see the green trees, the neat grasses and the colourful flowers. They were really wonderful. Shen Zhen has a lot of tall buildings. And it is a modern city.
我期待着每年的暑假. 今天,我去xx度我的假期,这也是一个城市像海口滨海.我喜欢走了晚饭后在海滩游泳或在下午.天是蓝的,空气是清新的 .随时随地,可以看到绿色的树木,整齐草和五颜六色花朵.他们是真的太好了.这里有很多高楼大厦.这是一个现代化城市.
7,This morning I woke up at 6 o 'clock is to the kitchen for mom made a bowl of beef and tomato noodles, mother looked at me as she do breakfast is very happy, she finally put all eat noodles, very delicious, also say I grew up, not a kid, can look after himself, I listened also very happy. Then in the afternoon,I and my best friend go swimming, swimming pools, many people. Then we go to a lot of things, they were very delicious. I like to eat the ice-crowm. I eat two. 16:00 us to go home. She in our home to eat meals, a very rich dinner.
翻译：
今天早上我6点钟就醒来了然后到厨房为妈妈做了一碗牛肉西红柿面,妈妈看了我为她做的早饭很高兴,最后她把面条全部吃了,说很好吃,还说我长大了,不在是小孩了,可以自己照顾自己了,我听了也很开心.下午的时候我和我最好的朋友去游泳,游泳池人很多.然后我们去吃了很多东西,它们都很美味.我最喜欢吃的是雪糕,所以我吃了两个.16点我们一起回家了.她在我们家吃的饭,晚餐十分丰盛.
8,Today WAS how happy one day, because mother decided that has our exiting picnic! Each people made ready especially anticipation and excited, prepared the respective baggage to prepare to embark!
Outside air is very good, people feel very comfortable. We enjoyed the beautiful nature brought. We happily spent a happy day.

今天是多么开心的一天啊,因为妈妈决定带我们出去野餐!每个人都特备的期待和兴奋,都准备好了各自的行李准备出发!今天和朋友一起出外交游,外面的空气很好,人感觉很舒服.我们骑着自行车一路欣赏鸟语花香.享受着大自然带给我们的无限美好.大家开开心心地度过了愉快的一天.

Why do you always follow me?
Please speak more slowly I can't follow you.

A.磁场是具有强弱和方向的.正确.
B.磁感线可以交叉.错误.
C.磁场分布局限于某一平面内.错误.通常是分布在三维空间.
D.磁感线客观存在.正确.
亲,不要忘记及时采纳哦.有问题另行提问,我会随时帮助你.

示例：花间一壶酒，独酌无相亲；三杯两盏淡酒，怎敌他晚来风急？（答案不唯一）

1、汉武帝对匈奴采取强硬态度,一改以往和亲的办法.因为国力增强了,具备主动出击的条件.
效果就是把匈奴赶到漠北
但没有彻底清除
2、后两句是汉初对匈奴采取和亲策略,和亲起到防止匈奴侵扰的作用
昭君出塞也促进民族融合

小明既会唱歌又会跳舞

如果我们努力学习,就一定会有美好的未来
即使生病了,小麦也会坚持去上学
无论成功还是失败,我们都不要灰心
小明不是不喜欢读说,而是因为经济的原因而辍学
我成功了 是因为我努力过

只要是角度,不管是多少度,都可以用sin
sin135°=sin45°=√2/2