一件伤心的事四百字

a/b=（ / ）+（ / ） 比如1/6=(1/12)+(1/12) 有什么方法 举列几个典型的这种题目思考方法仅局限于六年级水准.最好有什么公式啊 谢谢各位大哥大姐小弟小妹 音标ɪ和i一样吗 音标/i/和/ɪ/有什么不同? who is knocking at the door?it'me 还是I am 还是 it's I要详细一点 说明它们的区别 it seem diffcult for him to decide（——）to leave or stay填空 The problem is a bit difficult ,but he can ( ) to work it out.A.follow B.break C.leave D.manage trap the sun's Some of us are trapped as ice in the Arctic.中trap的意思是什么? 请高手帮忙改下下面的这段话,谢.Students’ Evaluation of TheirTeachersIn my personal opinion,itshould be treated dialectically and scientifically.Students' views areimportant,but this is not the only basis.If an educator got a bad grade 帮忙把这段话修改一下```谢啦这是一篇关于介绍如何戒烟的文章的结尾段.个人感觉写的太少了,希望各位能再帮我加两句话或者修改一下,让结尾更好些````谢啦After reading the essay,have you built up the way in which they trap heat in the atmosphere is called the "greenhouse effect"这句中,inwhich 充当什么成份.个人认为,如果in which当定语,等于where,但是which后无不及物动词 请问何为三相四线制? 请高手帮忙看看下面这段话有什么问题没,修改下,本人的写作The music of Enigma is beyond our imagination.The band you may have heard is fromGemany.The Song called Return To Innocence(返璞归真 )may impress you during the 1996 You always can see a girl in a whiteT-shirt ,a pair of dark blue trousers run in the playground.The girl’s hair isshort .Her eyes aren’t big ,but her nose is high..She is a good talker .She is kind andfriendly.All her families and her friendslike 三相四线制缺相运行会造成其余相的电压升高?是不是说在正常运行的情况下四线断其一会造成其余几条线的电压升高? 求大神来帮我改一下这段话,谢!花开花谢,朝朝暮暮,自然之景也.高楼耸立,人潮人海,城市之景也.我们所作所为,所思所想,人文之景也.世间之物千万万,万物之景,何景何幕,留你心间,令你为之触 为什么人要身不由己 自然数A和B都不为0,如果A÷B=6,那么A是B的( ),B是A的( 老人愣了,思考了一会儿我说的话,呵呵地笑了：“谁派我干啥呀?俺愿意的.”改为不用引号的句子.瀑布直泻而下.改成夸张句. 插卡去电开关和电子门开关能一起用吗 诗句补充求修改~白衣弱颜游莲步,倾尽雪月败素颜——求补充几句或修改~独爱容颜秋似水,长思倾国沉鱼雁.却忆楚王叹虞兮,汉王坡下泣杨妃.可怜纵情红颜非,多少缠绵几何悲.古来神仙羡赤情, 把下列句子改成被动语态,1.Did he break the window yesterday?2.Mum gave me a computer as my birthday present3.the sun made the man take off his coat 4.they are going to build a tall builing here 5.when did she cook supper yesterday 齐宣王为大室 好为大室翻译 若等比数列{an}的前3项和S3=21,S6=189,则a4=?A 24B 48 C 54D 12 动词不定式做表语时,TO可以省略吗? 一个圆柱和一个圆锥的体积相等,底面积也相等,已知圆锥的高是6,则圆柱的高是（ ）cm,圆锥的高是 我们宿舍有个人做事老针对我,我试图找他谈,他却不以为然,导致他现在每做一件事,我都不由自主的想做一件...我们宿舍有个人做事老针对我,我试图找他谈,他却不以为然,导致他现在每做一件 “滥用”与“乱用”有什么区别? 英语改错.这句话那里错了.意思比较乱.strong sales of exercise apparel is the result of that exercise apparel happens to be fashionable at the moment that have nothing to do with residents are interested in exercising中文意思是 好 abuse 滥用与exploit利用有什么区别,具体点我最迷惑的就是那个abuse滥用特权和exploit利用（…为自己谋利）的区别 所得税费用和应交所得税有什么区别?有点乱,谁能帮我解释的白话文清楚一点 也许它跑到花园或森林里去了吧?我们心里空落落的.松鼠失踪后,我们一家人的心情是（）用文中的词来描述