已知三个质数的倒数和为

求一篇大学英语课堂上的演讲稿,可以说着自己的爱好之类的 树变的越来越少 英语RT到底是less and less 还是fewer and fewer? 马上要考六级了,听力总共练的时间全部算大概6个月,每天2小时.但还是听不懂,崩溃了,好没信心啊...谢谢大家 我过了 考了463 也祝一直努力的同学都过 我六级考了两次了 还没过 听力越来越不好了 告诉告诉我怎么提高听力和写作能力第一次六级总分401分 阅读 176 写作59 综合16 听力 150第二次六级总分397 阅读 186 写作 49 综合 44 听力 118我怎么 我考六级了,第一次没有考过,听力太差!谁能告诉我怎样才能在短时间内把听力分数拉上去吗? 高一英语作文-我的英语老师 四级没过 但是通过了六级报名 成绩有效吗 有成绩单吗 四级没过怎么报六级成功了?我的注考证没了,听说四级没过不能考六级,试了下报六级成功了,后来又查到四级没过呢?这是怎么个事?到12月能去考六级吗? 急,我女朋友四级没过但六级报名成功了,也得了准考证,就是不知道考了成绩有效吗?她今年研一,本科时四级没过,本来报六级试试看的,没想到成功了,也发了准考证,没两天就考了,又担心不符合 2014年9月电大英语网考成绩怎么查询? 9月份电大英语网考,不知成绩什么时候能出来 2010年4月份的电大英语网考成绩什么时候能查2010年4月25日,上海电大网考英语,什么时候能查到成绩,通过什么方式查,麻烦知道的朋友告诉下? 有机生活给人类带来什么?有机生活是不是人类最想要的生活? 2012会是真的吗?人类有生存的希望么? They must have some t—— in English before they start to work.I got some i—— about his family from Tony.When I got to the bus s—— ,the bus had left.（stop or station?） 人类是否能在月球上生存?能,我们可以变成奥特曼 有机物对人类生活的作用 I made some mistakes in the English test yesterday.否定句 首字母为B, 词义是"小", 都有哪些英文单词? 用所给字母组成单词并写出词义1 a,i,n,p,t2a,n,c,e,d3n,y,f,u,n,4a,r,t,y,p5e,e,h,s,p 根据词义或语境和首字母写出单词1.The p_ of a country that has no king or queen is a person who has the hightest political and is the leader of the country.2.When the u_ of twu or more things happens,they are joind toghter and become one 我英语四级没过但是这次错报了六级而且还拿到了准考证,如果我六级这次过了,会有六级的成绩单吗?如果过了会发给我六级的成绩单作为证明吗? 电大英语网考难过吗?没考过信心不足! They usually do some office work weekdays.A.in \x05B.on \x05C.at \x05D.both B and C They are office workes.They work in ___offic.A.a B.an C.some D.all I'm()good terms()Mary and she is my good friend选哪个a.on,/ b./with c.on,with d.with,on dad,t____is mary.she's my friend Mr Green works in an office in France.41saturday ,he went to the offic to do some work..when he goton the elevator .it stopped between the 42.Mr Green could not get outof the elevator .He started to 43,but no one 44 him.41 .A Last B All C None 42 .A 选词填空：lives likes has have family japan makes Mary is from( ).She ( )in China now.She ( )two选词填空：lives likes has have family japan makesMary is from( ).She ( )in China now.She ( )two brothers.They are Mike and Jim.They are eleven.T Mr.Liis busy _some important work in his office.nowAat b.for c,with选?why Here is letter --- Mary --- her friend in Canada.是in,to 还是 from,to 是 to,from 还是 from,in appleggoodukeyoyopenoseraser (找出字母链中的单词,写出来.)