讨论 动词discuss 名词discussion

A：Yesterday,before I went to bed I asked my mon to tell me a bed-time story.Actually,she was quite a bad story teller because she had told me a ghost story and finally I couldn't go to sleep.
B:Oh,it sounds horrible,I would get frightened at nigh if someone tell me a ghost story that makes up with horrible pictures.And you know,girls will always feel nervous and won't stay alone anymore after listening to those stories.
C:That's true.Sometimes I just feel somebody is stairing at me in the dark when you are forced to revive those horrible pictures and frithening characters in the story.I will become more anxious than ever though I never believe in the existence of ghost.
D:In this case,I will fefuse anyone who tend to tell a ghost story to me.And I wil find someting interesting to talk about instead of always thinking about the story.I mean,if I keep thinking like that,I would go creazy until I realize that everything won;t happen in real life.
E:If I were you,I would stop my mon by telling that kind of shit before bed-time.I konw sometimes we scare ourselves to no resons,but you cannot be able to forget everyting that suppose to come true in your life.It is also a kind of stress you create by yourself.As far as I consider,the ghost story is no good story because it never makes you feel relaxed.

综述就是综合叙述.历史问答题中如果含有“综述”二字,就肯定属于综述题.二是相当于名词解释,着重点是需回答一个事物或词语的定义或概念,条文性没...

x1

此函数在间断点x=0处不连续,原因是：左极限为1,右极限为-1.不连续所以在x=1处不可导.

对于讨论题一个小组的成员要分好工,有人唱红脸有人唱黑脸,for example
lets have a free talk.once my friend asked me if people should always tell the truth .in my opinion,people should always tell the truth because its one of the basic characters a good person should have 然后举例子so whats ur opinion ...记住讨论题不要光自己说每个人都说都参与你的份才会高.—but i cant agree with u u know sometimes we need some white lies(美丽的谎言),in order to make someone'dream come true举个例子我记得有过一个小孩身患重病眼也看不见想去北京看升旗,周围的人就变了一个美丽的谎言.还有we cant tell lies to our parents and we cant tell the truth to those bad people as well well we all have own opinoins,maybe sometimes we need some white lies but most of the time we should be honest and tell the truth .

答：
f(x)=x-a/x
求导：f'(x)=1+a/x²
1）
当a>=0时,f'(x)>0,f(x)的两个分支是单调递增函数
所以：单调递增区间是（-∞,0）或者（0,+∞）
2）
当a0,f(x)是单调递增函数
当-√(-a)

这个函数的单调性等同于
f(x)=ax/x^2的单调性
现在就可以化解为f(x1)/f(x2)的方法
也就是复合函数单调性的求法
当a大于0时x1>x2>0做除法可以得到

显然函数在（-∞,0）用（0,+∞）上均连续.
由于 lim(x→0-)f(x)=lim(x→0-) (-x+1)=1=f(0),
lim(x→0+)f(x)=lim(x→0+) (-x-1)=-1,
所以函数在 x=0 处左连续 .

己所不欲,勿施于人”此语出于《论语·颜渊篇》,是孔子经典妙句之一,亦是儒家文化精华之处.中国的《论语》就如同西方的《圣经》一般,是对一个民族或一个区域文化的概括和统领.《论语》分二十篇,其中的《颜渊篇》主要讲述了孔子对“仁”和“恕”的解释.
“己所不欲,勿施于人”是指：自己不想要的东西,切勿强加给别人.孔子所强调的是,人应该宽恕待人,应提倡“恕”道,唯有如此才是仁的表现.“恕”道是“仁”的消极表现,而其积极表现便是“己欲立而立人,己欲达而达人”.孔子所阐释的仁以“爱人”为中心,而爱人这种行为当然就包括着宽恕待人这一方面.《论语》中提到：夫子之道,忠恕而已矣.
这句话所揭晓的是处理人际关系的重要原则.孔子所言是指人应当以对待自身的行为为参照物来对待他人.人应该有宽广的胸怀,待人处事之时切勿心胸狭窄,而应宽宏大量,宽恕待人.倘若自己所不欲的,硬推给他人,不仅会破坏与他人的关系,也会将事情弄得僵持而不可收拾.人与人之间的交往确实应该坚持这种原则,这是尊重他人,平等待人的体现.人生在世除了关注自身的存在以外,还得关注他人的存在,人与人之间是平等的,切勿将己所不欲施于人.
以上所理解的“人”是广义的,是指大众,然而《论语》诞生的那个时代“人”的定义通常是指狭义那方面,也就是指士以上的人,和“民”是相对而言.“己所不欲,勿施于人”的前面写着的是“出门如见大宾,使民如承大祭”,这是在同一句话中叙述的,很明显这里的“民”是指被剥削阶级,劳动人民.用现在的语言来说,狭义的“人”是指奴隶主,即剥削阶级,而“民”是指奴隶,即被剥削阶级,所以这句话当然也就可以理解为“己所不欲,勿施于人”这种人际关系原则适用于剥削阶级,而剥削阶级与被剥削阶级的关系却未必如此.这种理解并非无稽之谈,也并非完全不具可能性,然而,众所周知,孔子是鼎力推崇“仁”之士,此处的“人”应当是指广义的.
孔子所道出这么一句话并非放之四海而皆准的定理.若凡事都从这个原则出发的话,很多事情都会卡在中间,难以前进.倘若两人举枪对峙,生命危在旦夕,甲为正,乙为邪,这时如果甲恪守“己所不欲,勿施于人”的原则,岂不惨哉!甲当然不会想被杀掉,难道就不杀不想被杀的乙了么?任何道理,任何定律都是在一定条件,一定环境下才适合的.
“己所不欲,勿施于人”是儒家思想的精华,也是中华民族根深蒂固的信条,然而在现实中许多人都不能恪守“己所不欲,勿施于人”的信条,一切以个人利益为中心,只顾及自身的感受,而忽略了他人的感受.无论是在处理人际关系,还是政治关系方面都应当毫不犹豫地认识到“己所不欲,勿施于人”这条经久不衰的人际关系原则的重要性.

it depends,different people have different life.we cant control them

这一题根据单调性的定义；来判断就可以.
假设x1>x2,则x1-x2>0考察f(x1)与f(x2)的大小关系：
f(x1)-f(x2)=(ax1/x1方-1)-(ax2/x2方-1)通分,然后分子提取公因式
=a(x1-x2)(1-x1*x2)/(x1方-1)(x2方-1)
由(-10 此时,函数为单调递增函数
当a

They are discussing the pollution problem of the city

students talk with each other

这句话的表达的意思是：如果我们多想到他人,我们就将获得更多的感激.
With the development of society,fewer and fewer people will think much of others to make more money.They only think of their own interests .They throw rubbish everywhere to save their time.Fewer people will offer their seats to older people or women with babies on the bus.
However ,most people will help others,which is the Chinese good tradition.They often support older people .When they see someone drowning in a river ,they jump into the water in no time,not thinking of their own life.When someone is in great need of help ,they will give them a hand.We know that many people have contributed a lot to the people in Sichuan when the 5.12 earthquake happened.They are great and will be remembered forever.

以下是发正在以为父亲和他9岁儿子之间的对话.
“这是不公平的,爸爸,妈妈要我自己整理床铺,但我不会啊."
“是时候你自己学着做了,你的新床单呢?"
“我不知道.”
你需要照看好你的东西.”
“杰克的床单放在哪?”父亲问他的妻子.
“我们床单的右边”妻子回答说.
片刻后,父亲慢慢地问,“我们的床单放在哪里?”

1.因当x→0时
lim ln(1+x)=ln1 =0
lim [根号下(1+x)-根号下(1-x) ]=根号1-根号1=0
所以在点x=0处的连续
2.当x→0时
f'(x)=1/(1+x) f'(0)=1/(1+0)=1
f'(x)=1/[2根号(x+1)]+1/[2根号(1-x)]
f'(0)=1/2+1/2=1
所以在点x=0处可导

这句话的表达的意思是：如果我们多想到他人,我们就将获得更多的感激.
With the development of society,fewer and fewer people will think much of others to make more money.They only think of their own interests .They throw rubbish everywhere to save their time.Fewer people will offer their seats to older people or women with babies on the bus.
However ,most people will help others,which is the Chinese good tradition.They often support older people .When they see someone drowning in a river ,they jump into the water in no time,not thinking of their own life.When someone is in great need of help ,they will give them a hand.We know that many people have contributed a lot to the people in Sichuan when the 5.12 earthquake happened.They are great and will be remembered forever.

a humor can make french laugh to tears,but cann't make russian yet. because they are in different base ofculture.

Nowadays there is a hot debate about what is the flash-married-and-flash-off married;

对于讨论题一个小组的成员要分好工,有人唱红脸有人唱黑脸,for example
lets have a free talk.once my friend asked me if people should always tell the truth .in my opinion,people should always tell the truth because its one of the basic characters a good person should have 然后举例子so whats ur opinion ...记住讨论题不要光自己说每个人都说都参与你的份才会高.—but i cant agree with u u know sometimes we need some white lies(美丽的谎言),in order to make someone'dream come true举个例子我记得有过一个小孩身患重病眼也看不见想去北京看升旗,周围的人就变了一个美丽的谎言.还有we cant tell lies to our parents and we cant tell the truth to those bad people as well well we all have own opinoins,maybe sometimes we need some white lies but most of the time we should be honest and tell the truth .

No.
It is true that while travelling,most people don't get good rest.But let's consider the reason why they want to travel.They want to expose themselves to the world out of theirs.They want to have a brand new view of the things around.When travelling,they are able to reach this goal.So it is not a suffer.Even it is to some extent,it's worth it.
-----助人自助英语团诚心回答

500万年,人太脆弱了.

想法是对的
其实,你上大学学过微分中值定理后就会知道[f(x1)-f(x2)]/(x1-x2)这个式子总是可以写成位于某一点的导数的值,这就是你想法的依据.但高中的话,最好不要这样,因为你毕竟还没有学,直接用看上去会很不严密的

why？ ...............................

Childhood, like a sweet dream, I really hope that this dream will never wake up; childhood, like a mellow wine, I really hope that this wine is always less than the end product; childhood, like a moth...

因为函数形式为
a-(2a-1)/x的平方 你一定要记住的一点是,在这个式子中,自变量为x,也就是说,只有x是变化的.（虽然a是未知的,但a为常数,实际上是不变的.）
那么 由于首先a和 2a-1 部分都是不变的定值,看函数的增减性只需要看x 的取值.
当2a-1