请注意题目,是向量积(外积),不是数量积(内积).
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sparklinewine 共回答了18个问题
|采纳率94.4%- a与b的向量积是a与b的乘积再乘以它们的夹角余弦值
a与b的数量积是a与b的乘积再乘以它们的夹角正弦值 - 1年前
nathanhuang2004 共回答了9个问题
|采纳率- a与b的向量积是a与b的乘积再乘以它们的夹角余弦值
a与b的数量积是a与b的乘积再乘以它们的夹角正弦值 - 1年前
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|采纳率- 题目呢
- 1年前
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向晚意不适,驱车登古原.夕阳无限好,只是近黄昏
江南好,风景旧曾谙.日出江花红胜火,春来江水绿如蓝.能不忆江南?
毕竟西湖六月中,风光不与四时同.接天莲叶无穷碧,映日荷花别样红.
千里黄云白日曛,北风吹雁雪纷纷.莫愁前路无知己,天下谁人不识君.
渡头余落日,墟里上孤烟
大漠孤烟直,长河落日圆.
月亮:
明月松间照,清泉石上流.(王维:《山居秋瞑》)
人有悲欢离合,月有阴晴圆缺.(苏轼:《水调歌头•明月几时有》)
秦时明月汉时关,万里长征人未还.(王昌龄:《出塞》)
举杯邀明月,对影成三人.(李白:《月下独酌》)
月出惊山鸟,时鸣春涧中.(王维:《鸟鸣涧》)
滟滟随波千万里,何处春江无月明 唐•张若虚《春江花月夜》
海上生明月,天涯共此时 唐•张九龄《望月怀远》
江天一色无纤尘,皎皎空中孤月轮 唐•张若虚《春江花月夜》
可怜九月初三夜,露似真珠月似弓.唐 白居易 《暮江吟》
明月别枝惊鹊,清风半夜鸣蝉.宋 辛弃疾 《西江月》1年前查看全部
- 亲,功率的推导公式是什么?各位亲请注意是功率不是电功率,是推导公式不是计算公式!
金沙桥1年前2
-
smilingl 共回答了12个问题
|采纳率66.7%功率(P):单位时间(t)里完成的功(W),叫功率.
计算公式:P=W/t .
单位:瓦特(w)
推导公式:P=Fv.(速度的单位要用m/s)
因为W=Fs
所以P=W/t=Fs/t
又因为v=s/t
所以P=Fv1年前查看全部
- 课上请注意听老师讲.汉译英 Please( )listening to your teacher in class
猪头冼1年前1
-
肥肥秋 共回答了15个问题
|采纳率93.3%pay attention to1年前查看全部
- 二氧化钛粉末不溶解于什么液体?请注意:是钛,不是碳!
二氧化钛粉末不溶解于什么液体?请注意:是钛,不是碳!
谢谢“bbx985”的回答,但二氧化钛是微溶于水的!kdmvx1年前2
-
jackiehmily 共回答了20个问题
|采纳率100%不溶于水.1年前查看全部
- 高手请注意喽:一元一次不等式组与一元一次不等式的区别与联系(要答的准一点呀且不要太多)
玩家11年前1
-
wanggangljm 共回答了23个问题
|采纳率87%不等式:表示不相等关系的式子
一元一次不等式:只含有一个未知数,且未知数的次数是一次的不等式
一元一次不等式组:由几个含有同一个未知数的一次不等式组成的不等式组
不等式组的解集:不等式组中所有不等式的解集的公共部分
不等式的解集:一个含有未知数的不等式的解的全集
解一元一次不等式:解法和解一元一次方程很类似,但要牢记不等式两边乘以(或除以)同一个负数,必须改变不等好的方向
解一元一次不等式组的步骤:
(1)先求出不等式组里每个不等式的解集;
(2)再求出各个不等式的解集的公共部分,就可以得到这个不等式组的解集.
一个不等式组里各个不等式的解集如果没有公共部分,那么这个不等式组无解.1年前查看全部
- 含有焕然一新、耳目一新意识的字,请注意:字,不是词语.
102团1年前1
-
ahfx 共回答了20个问题
|采纳率85%焕、新1年前查看全部
- 英语翻译上下楼梯靠右走,人多不挤才能走.请注意语法.
无飞1年前3
-
jj12345678 共回答了17个问题
|采纳率100%Go up and down stairs,you should go by the right.
Please go until it is not very crowded.1年前查看全部
- 请翻译:一句话!原来我们不了解?!(一种带有气愤和质疑的口气,原话是,原来我们不了解对方?!请注意标点符号的作用)
6601281年前1
-
陈容mm 共回答了23个问题
|采纳率95.7%How dare you say we don't know each other?!
understand 在这种情况下太正式 口语中使用know each other就是互相理解的意思了
dare就是很愤怒的时候说的 如果没有那么愤怒 就可以说
How could you say...1年前查看全部
- 英语翻译请要去九老洞的游客买票 每个人要花伍元钱的照明费 洞里太黑了,需要工作人员在这里提前开灯 洞里温度较低请注意温差
英语翻译
请要去九老洞的游客买票 每个人要花伍元钱的照明费 洞里太黑了,需要工作人员在这里提前开灯 洞里温度较低请注意温差 不要感冒 请要去的游客在此买票方可进入 祝旅途愉快.8m181年前4
-
尘封亡灵 共回答了21个问题
|采纳率95.2%please buy your ticket before you go into the jiulao dong.besides,everyone should take out five more yuan since that place is so dark that we need workers turn on the lights in advance.please keep yourself warm when you are exposed in a colder environment.one more attion:get your tickets here before you get in.have a nice trip!1年前查看全部
- 英语翻译翻译下面这段英文哈 请注意标点哈!或许,这是最后一次写,可是我也不够确定.好多好多话好想告诉,可是发现现在却只想
英语翻译
翻译下面这段英文哈 请注意标点哈!
或许,这是最后一次写,可是我也不够确定.
好多好多话好想告诉,可是发现现在却只想好好的埋藏在心中.
谁知道呢?没有人.
你可能已经忘记,不过我还是想说“拉过勾的我相信(这句不用翻译哈!)”
额 首先谢谢你的回答 不过 那个 最后一次写不用 to you ...
还有你忘记帮我翻译那句 “不过我还是想说”秋天的20021年前3
-
lilydolphin 共回答了26个问题
|采纳率84.6%Perhaps,this is my last letter to you,however,even I am not too certain about it myself.
There are hell a lot of things that I want to tell you,but due to our current situation,I would rather keep them in my heart.Who would know about them?Nobody.
You have probably forgotten,I nevertheless want to say "."1年前查看全部
- 阅读下面短文,请根据 阅读下面短文,请根据短文后的要求进行答题.(请注意问题后的字数要求) [l]Compar
阅读下面短文,请根据
阅读下面短文,请根据短文后的要求进行答题.(请注意问题后的字数要求) [l]Compared to people with bad attitudes,people _____ are less likely to suffer from colds.It's possible
that being positive helps the body fight illnesses.
[2]In a previous study,people who tended to be cheerful and lively were least likely to develop coughs
and other cold symptoms.People who showed positive feelings were also less likely to mention symptoms
to their doctors,even when medical tests detected those symptoms.
[3] Those findings were interesting,but they didn't prove that a person's attitude affects whether he or
she gets sick. Instead,it was still possible that a person's underlying personality is what matters.
[4]Evidence suggests,for instance,that certain people are naturally more likely to be outgoing and
optimistic,with high self-esteem and a sense of control over life.This would mean that who we are,not
how we feel,ultimately decides our chances of catching colds.
[5]To figure out which mattered more,personality or emotions,the researchers interviewed 193 healthy
adults.The results showed that everyone in the study was equally likely to get infected.Their symptoms,
however,differed depending on the types of emotions that they had reported over the previous fortnight.
[6]Among those who reported good moods and had been infected with the flu virus,for example,28
percent developed coughs and stuffy noses.On the other hand,those symptoms struck 41 percent of people
who had been less positive.
[7]Scientists argue about whether negative emotions or positive emotions have a stronger effect on how
healthy we are.For now,it can't hurt to look on the bright side more often than not!1.What's the main idea of the passage?(Please answer within 10 words)
_____________________________________________________________________________________
2.Fillin the blank with proper words in the first paragraph (Please answer within 10 words)
_____________________________________________________________________________________
3.Which sentence in the passage can be replaced by the following one?But,their symPtoms were closely
related to the emotions they had claimed to have in the last two weeks.
_____________________________________________________________________________________
4.Translate the underlined sentence in the third paragraph into proper Chinese.
_____________________________________________________________________________________
5.Suppose one of your friends had got infected with the HINI flu give him/her at least three pieces of advice.
(Please answer within 30 words)
_____________________________________________________________________________________j_xh1年前1
-
燕七啊 共回答了13个问题
|采纳率84.6%1.Positive attitudes keep you healthy/Being cheerful keeps you healthy/Personality and emotion concern
health.
2.who are cheerful and relaxed/who are positive/with positive attitudes/who are optimistic.
3.Their symptoms,however,differed depending on the types of emotions that they had reported over
the previous fortnight.
4.这些发现很有趣,但不能证明一个人的态度对他/她是否生病产生影响.
5.Answers may vary.
答案不唯一1年前查看全部
- .已知 2X²+X一楼请注意~是 2X²+X 不是 2的X²+X次方!
.已知 2X²+X
一楼请注意~
是 2X²+X 不是 2的X²+X次方!我要的不是我1年前3
-
Dunk2005 共回答了16个问题
|采纳率87.5%如果你和我是一个学校的,那么我很想说:我们发的那个试卷可能印错了= =,
应该是2的X²+X次方,要不我们没法做.你是深外的么1年前查看全部
- ①在长1.4米,宽0.9米的长方形卡纸,最多可以剪几个边长为2分米的直角三角形,是m和dm请注意.
michael__x1年前1
-
cbhlulu 共回答了25个问题
|采纳率84%2dm=0.2m
1.4*0.9=1.26m²
0.2*0.2÷2=0.02m²
1.26/0.02=63个1年前查看全部
- 有没有提高记忆能力的书?请注意,是记忆能力,而不是记忆力.因为不是说看完这本书读者的记忆力一下子就一飞冲天,从而过目不忘
有没有提高记忆能力的书?
请注意,是记忆能力,而不是记忆力.因为不是说看完这本书读者的记忆力一下子就一飞冲天,从而过目不忘了.而是因为里面介绍了不少记忆方法并通过完成练习增强读者的对自己记忆力的信心.99552F1年前1
-
海定 共回答了12个问题
|采纳率66.7%记忆能力有多少人可以通过看书学方法再锻炼而有长进?记忆能力每天都不一样,休息好营养好心情平稳就是最好的良药.有锻炼记忆能力的时间不如去好好休息或是真正记一些东西,脑子是不会蒙你的.别强求,那些所谓记忆力好的,记东西快的,是胎里带的.每个人记忆能力都是无限大,相信自己静下心来,就行.
如果你是想研究这方面的知识 就当我没说.#-#
如果是想记专升本的东西.就坐下来背.什么的.1年前查看全部
- 用浓度为36~38%的硝酸配制成8%硝酸溶液,如何配制?请注意看问题补充!
用浓度为36~38%的硝酸配制成8%硝酸溶液,如何配制?请注意看问题补充!
假设取1kg的硝酸(浓度为36~38%)配制成8%硝酸溶液要加多少水?
PS:没办法购买的瓶装硝酸,硝酸标签上写的浓度就是36~38%joecky1年前3
-
zjytjxb 共回答了14个问题
|采纳率100%对于这样的工业硝酸酸不必太较真,取中间值就可以了.
首先计算出37%硝酸酸与水的质量比
8/(37-8)=8/29
1kg的硝酸(浓度为36~38%)配制成8%硝酸溶液要加水
1×29/8=3.625kg1年前查看全部
- 英语翻译请问:“合同原件已经在前两天邮寄给你了,请注意查收.”翻译成英文如何讲,
key17421年前2
-
qweasd_2001 共回答了24个问题
|采纳率100%The original contract has been mailed to you two days ago,please check for that.
楼上的,the first two days是“一开始的前两天”的意思,不要翻错了哦.1年前查看全部
- 阅读下面短文,并根据题目要求用英语回答问题 (请注意问题后的字数要求)。
阅读下面短文,并根据题目要求用英语回答问题 (请注意问题后的字数要求)。
“Let’s Talk”:The Free Advice Project
A few weeks ago, I took a walk around Washington Square Park. I met all the usual people:street performers, the Pigeon Guy, a group of guitarists singing in harmony. But off to the side, sitting on a bench was a woman doing something vastly different—giving free advice.
A week or two later, I set up an interview with her and we discussed her project at length.
Lisa Podell, 32, started the Free Advice Project this past May. It began as an experiment; she sat in Washington Square Park for a day with a sign that read “Free Advice” as a simple way to reach out to people. Podell was astonished at the strong response.
Podell admits that she was doubtful at first, but now she describes the project as mutually (相互地) beneficial. People learn from her—but she also learns from them. She says that the majority of those who come to her are dealing with some pretty heavy issues, and they expect her not only to listen, but also provide real answers.
Having worked as a full time teacher and now as an adolescent advisor, Podell believes that talking things out is an important in the decision-making process.
Sometimes, people walk around all day, keeping their problems in their own head and thinking about them in the same way. Podell simply strives to provide people with perspective.
I asked if there is a future plan for the Free Advice Project. Podell said she would like to promote it to each public space in New York, which would be carried out by various volunteers across the city.
It was truly inspiring to meet someone with such a big heart, especially in New York—where it is sometimes very hard to find anybody to listen. (303 words)
小题1: In what way was Podell different from other people in the park? (No more than 6 words)
________________________________________________________________________
小题2: What do people in need expect Podell to do? (No more than 10 words)
________________________________________________________________________
小题3:According to Podell, what should people do when making decisions? (No more than 6 words)
________________________________________________________________________
小题4:How would Podell promote her project in New York? (No more than 15 words)
________________________________________________________________________
小题5:Would you like to be a volunteer in the Free Advice Project ? Why?
________________________________________________________________________桃源二舍1年前1
-
我开始回帖了 共回答了15个问题
|采纳率80%小题1:She was giving free advice.
小题2:They expect her to listen and provide real answers.
小题3:They should talk things out.
小题4:She would promote it to each public space with the help of volunteers.
小题5:Yes. I can help people in need.
1年前查看全部
- 有机盐 定义和举例什么叫有机盐?(注:请注意,不是有机物,是有机盐)那些物质属于有机盐?
bedluck1年前1
-
xiaobo529 共回答了16个问题
|采纳率93.8%有机盐包括两大类,一类是(非)金属正离子+有机负离子,比如乙酸钠,乙酸铵,乙炔银,乙醇钠等
二类就是有机正离子+无机负离子,比如乙胺跟盐酸生成的氯化乙胺盐.
另外还有一大类就是高聚有机盐类,可以导电,做有机导体.
具体的你可以查看百度知道1年前查看全部
- 阅读下面短文,请根据 阅读下面短文,请根据短文后的要求答题.(请注意问题后的字数要求). Nowadays in
阅读下面短文,请根据
阅读下面短文,请根据短文后的要求答题.(请注意问题后的字数要求).
Nowadays in China,parents care about their children’s education more than anything else.They spend a
lot coaching their children in their studies; those who have time or are not able to do it have tutors hired for their children.Many have their children sent to after-class schools.Some others even have tired to improve their living environment.It seems as if a better education is all that parents expect for their children.
The situation can be explained by the following reasons.First of all,the swift development of China’s
economy is calling for more and more skilled and knowledgeable workers and professionals(专业人士).Second,the awareness of today’s parents’ has been growing that success in this world depends more on
skills and knowledge than on anything else.Skills and knowledge means competitiveness(竞争).At last,
with school education becoming more and more expensive,it is natural for parents to expect their children could become somebody or doing something great.
Of course,I’m happy to see much of parents’ attention paid to their children’s education.However,they should not go too far to ignore their children’s abilities and personal qualities.I think the first thing to lean is how to survive and how to be a qualified citizen.if parents can try their best to help children’s characters,it will bring a happy life to their children when they grow up.1. What’s the main idea of the passage? (Within 15 words)
____________________________________________________________________________
2. According to the paragraph 2, why are more and more skilled and knowledgeable workers needed. (Within 15 words)
____________________________________________________________________________
3. What the meaning of the underlined word “coaching”? (Within 8 words)
____________________________________________________________________________
4. In author’s opinion, what is also important for children besides sills and knowledge? (Within 10 words) ____________________________________________________________________________
5. Do your parents care about our education? How? (Within 20 words)
____________________________________________________________________________zhenglele1年前1
-
Google测试员5378 共回答了21个问题
|采纳率85.7%1.It tells us that parents pay much attention to their children’s education in China.
2. Because of the swift development of China’s economy.
3. teaching/ helping/ training
4. children’s abilities and personal qualities
5.略1年前查看全部
- 春节就要到了,通常你在春节前会和妈妈一起出去购物。请根据下表提供的信息,完成一篇英语短文。请注意要语句连贯,条理清楚,适
春节就要到了,通常你在春节前会和妈妈一起出去购物。请根据下表提供的信息,完成一篇英语短文。请注意要语句连贯,条理清楚,适当发挥。字数60-70字左右,开头已经给出,不计入词数。
what to buy where to buy going shopping some orange juice… a food shop some vegetables and fruit, no sweet snacks … a pretty pink coat … something else… … reasons(原因) buy some… because we likehate them.
be good bad for health…look for a pink coat this year because it matches…
We buy something to drink and eat in a food shop. _____________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
______________________________________________________________________________________tangwentao1年前1
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feiquanzailo 共回答了17个问题
|采纳率100%My mother and I usually go shopping together for Chinese New Year.
We buy something to drink and eat in a food shop. We would like to buy some orange juice because they are good for our health. And we also buy some vegetables and fruit, because all my family members like eating them. But we don’t buy any sweet snacks because we don’t like them.
We often buy some new clothes in a clothes shop. I am looking for a pink coat this year, because the colour matches my new trousers well.
I always buy some books in a bookshop, too,because I like reading books. They are interesting.
1年前查看全部
- 连词成句请注意句首字母大写和句末标点符号!1.don’t ,I,think,name,I.,a,have,_______
连词成句
请注意句首字母大写和句末标点符号!
1.don’t ,I,think,name,I.,a,have,________________________________
2.usually,play,friend,with my ,I ,_______________________________
3.snowy,a,what,day,cold ________________________________
4.like,ski,to ,I ,on ,snow,the________________________________
5.holiday,a,is,Christmas,special_______________________________
6.going,open,are,to,our,we,gifts tomorrow._______________________________
全部正确就加财富值.assistant1年前2
-
499594119 共回答了20个问题
|采纳率90%1.I don't think I have a name.2.I usually play with my friend.3.What a cold,snowy day!4.I like to ski on the snow.5.Christmas is a special holiday.6.We are going to open our gifts tomorrow.1年前查看全部
- 阅读下面短文并回答问题, 然后将答案写到答题卡相应的位置上(请注意问题后的字数要求)。
阅读下面短文并回答问题, 然后将答案写到答题卡相应的位置上(请注意问题后的字数要求)。
2,4,6
er, it is one of the most important jobs in the world, and when there are no dustmen________, the general public soon becomes aware that something is wrong.
阅读表达(共5小题;每小题3分, 满分15分)
小题1:What is the main idea of the passage? (Please answer within 10 words. )
___________________________________________________________________________
小题2:Which sentence in the passage can be replaced by the following one?
We usually find the dustbins clean, but ignoring the doers.
___________________________________________________________________________
小题3: Please fill in the blank in the first paragraph with proper words or phrases to complete the sentence. (Please answer within 10 words. )
___________________________________________________________________________
小题4:How did the English people change their attitude to the dustmen? (Please answer within 30 words. )
___________________________________________________________________________ ___________________________________________________________________________
___________________________________________________________________________
小题5:Translate the underlined sentence in the second paragraph into Chinese.
___________________________________________________________________________
___________________________________________________________________________zechro1年前1
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66029049 共回答了20个问题
|采纳率95%小题1:The important of the work of the dustmen.
小题2:Our dustbins are emptied regularly, but we rarely stop to think about the men who do this.
小题3:to take away the rubbish.
小题4:As the dustmen of England went on strike for higher wages, not doing their work, people had to look for other places to get rid of the rubbish.
小题5:现在英国人对垃圾清运工的工作给予很高的关注, 不再漠视他们的存在。
略1年前查看全部
- 是高一的同学请注意.人教版生物同步练习P23第第六题第四小问.
是高一的同学请注意.人教版生物同步练习P23第第六题第四小问.
这是一道关于白化病(a)和色盲症(b 伴性)的概率题.第一对和第二对夫妇表现型都正常.第一对夫妇有三个女儿,其中一个患有白化病.第二对夫妇有两个儿子,其中一个也换有白化病.现在第一对夫妇的一个表现型正常的女儿和第二对夫妇的一个表现型正常的儿子生出一个既有白化又有红绿色盲的儿子.问这一对夫妇再生出一个既有白化又有红绿色盲的孩子的概率,以及如果他们再生一个儿子,则AaXBY的概率?her12341年前5
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carmen518 共回答了20个问题
|采纳率75%1/16 1/4,根据第一对夫妇的一个表现型正常的女儿和第二对夫妇的一个表现型正常的儿子生出一个既有白化又有红绿色盲的儿子可以判断,女儿是AaXBXb,儿子是AaXBY,则这一对夫妇再生出一个既有白化又有红绿色盲的孩子的概率为1/4*1/4=1/16.如果他们再生一个儿子,则AaXBY的概率为1/2*1/2=1/41年前查看全部
- 假如你是John,请根据表格内的信息写一篇短文,介绍你的家庭情况。可适当增加内容,不少于60词。请注意大小写和标点。
假如你是John,请根据表格内的信息写一篇短文,介绍你的家庭情况。可适当增加内容,不少于60词。请注意大小写和标点。
Name Age Job John 13 Student Father 44 English teacher Mother 40 doctor Sister(Kate) 10 student 每到的交往来看1年前1
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淡蓝小海 共回答了17个问题
|采纳率76.5%略
本题是写一篇给定材料的书面表达,主要介绍约翰的家庭情况,写作时应主要以第一人称和第三人称,介绍自己,爸爸,妈妈,妹妹的年龄和职业,写作时主语为第三人称应注意谓语动词的变化,同时应注意语言的准确性和连贯性。1年前查看全部
- 听写。(请注意听录音,然后用楷体字或行字把这九个字规范、工整地书写在答题卡田字格。)(2分)
记忆的方向1年前1
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圣诞快乐井宝 共回答了19个问题
|采纳率78.9%让信仰变成一种力量
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- 狐假虎威古文+译文注意!是一句古文+一句译文的翻译 不是整片古文和整片译文的翻译 请注意!
printscreen123451年前1
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JE03 共回答了15个问题
|采纳率86.7%“虎求百兽而食之,得狐.狐曰:‘子无敢食我也.天帝使我长百兽,今子食我,是逆天帝命也.子以我为不信,吾为子先行,子随我后,观百兽之见我而敢不走乎!’虎以为然,故遂与之行,兽见之皆走.虎不知兽畏己而走也,以为畏狐也."
或
有一天,一只老虎正在深山老林里转悠,突然发现了一只狐狸,便迅速抓住了它,心想今天的午餐又可以美美地享受一顿了.
狐狸生性狡猾,它知道今天被老虎逮住以后,前景一定不妙,于是就编出一个谎言,对老虎说:“我是天帝派到山林中来当百兽之王的,你要是吃了我,天帝是不会饶恕你的.”
老虎对狐狸的话将信将疑,便问:“你当百兽之王,有何证据?”狐狸赶紧说:“你如果不相信我的话,可以随我到山林中去走一走,我让你亲眼看看百兽对我望而生畏的样子.”
老虎想这倒也是个办法,于是就让狐狸在前面带路,自己尾随其后,一道向山林的深处走去.
森林中的野兔、山羊、花鹿、黑熊等各种兽类远远地看见老虎来了,一个个都吓得魂飞魄散,纷纷夺路逃命.
转了一圈之后,狐狸洋洋得意地对老虎说道:“现在你该看到了吧?森林中的百兽,有谁敢不怕我?”
老虎并不知道百兽害怕的正是它自己,反而因此相信了狐狸的谎言.狐狸不仅躲过了被吃的厄运,而且还在百兽面前大抖了一回威风.对于那些像狐狸一样仗势欺人的人,我们应当学会识破他们的伎俩1年前查看全部
- "你的留言已经收到,我们将会尽快给你回复,请注意查收邮件"英文怎么说?
"你的留言已经收到,我们将会尽快给你回复,请注意查收邮件"英文怎么说?
用机器翻译的就别来捣乱了.wqhui20041年前2
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菜手 共回答了24个问题
|采纳率83.3%We've got your note, and we will give a reply as soon as possible. Please check your E-mail.
绝非机器翻译1年前查看全部
大家在问
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- 3战争是一把双刃剑,它的双重作用是什么
- 4判断氧化性的强弱.①H2O2+2KI+H2O4=I2+K2SO4+2H2O②H2O2+I2=2HIO③H2O2+2HIO
- 5仿写<从百草园到三味书屋>第二段,<公园一角>400字!
- 6她沉默了一会儿,说:“我希望你的手指已经好了.”改为间接引语.
- 7春天到了,老师带领我们到野外郊外想到哪些词语
- 8已知直线l过点(1,5)且与圆C:x^2+y^2+2x-4x+1=0相切,求直线l的方程
- 9用分解因式法解下列方程:(1)X²-25=0 (2)(X+1)²=﹙2X-1﹚²
- 10隋朝大运河对生态环境方面有哪些影响?
- 11二力平衡要强调共线,但是矢量平移不是性质不变吗,那为什么强调共线?
- 12高数求积分,那个a好像是0
- 13直线2x+y+C=0和圆的x^2+y^2+4x-1=0相交,则C的范围是?
- 14________ he has been getting on well with his studies makes
- 15如图将矩形纸片abcd折叠使点d与点b重合.点c落在c'处,折痕为ef若角abe为20度,那