数学中什么叫素数

meanwhile与at the same timemeanwhile 与此同时 at the same time 同时 有啥不同吗? 请问大家shoes cafe这句话是什么意思?有几种意思? 怎么翻译You will first need to cancel the offer you have now and be placed back in line for housing. 英语翻译You will be particularly interested in a special offer on page 5 of the latest catalog enclosed,which you requested in your letter of 20 May.怎么看which 引导的是什么从句 这句话里有什么 固定搭配吗 英语翻译as the london ,the restaurant in new york will offer four surprise menus ,one entirely secret and the others made for meat eaters vegetarians or fish ande seafood lovers retro什么意思 英文Retro 鞋子后面的RETRO是什么意思啊谢谢了.在线等.. shoes什么意思? shoes的代词时it还是them? There is a computer on every desk.（用in the future改写） ____ _____ _____ a computer on every desk _____ _____ _____?将来,每个课桌上都将有一台计算机吗? 如何确定论文关键词 九寨沟阶梯式的海子形成的主要原因是什么 论文中的关键词怎么写 下面作文求给几个关键词~ 英译汉：Forward Link和ReverseData Speed :Forward Link :2.4Mbps Reverse Link :up to 153.6 kbps Genetics and Molecular Research 在什么地方投稿 He is thin .he wears glasses(合并为一句）he is thin__ __. He is thin. He waers glasses.两句合并一句.He is thin ____ ___. The person is my uncle.He wears glasses.(合并为一句）The person ( ) ( ) is my uncle. What caused the accident and who was responsible for it_____a mystery to us.为什么选B而不选A? what caused the accident and who was responsible for it ( ) a mystery to us.A.remain B.remains如果是的话,为什么后面是a mystery? —What caused the accident —It was my fau—What caused the accident —It was my fault ,sir .I to the left.A.ought not to have turned B.needn’t have turned C.shouldn’t turn D.couldn’t turn What caused the accident was/were the stones on the road.choose which one and why 是many public还是much public 2011作文关键词 The serious accident caused a____(discuss)on the Internet.Many people think thedriver is wrong. I heard he is singing.是病句么?能不能改为I heard that he is singing. 海口有家乐福沃尔玛吗? fantastic和werid的区别都是 奇异的 意思 区别是啥 immense,large ,big,fantastic有什么区别?.immense,large ,big,fantastic有什么区别?哪个比哪个大?急·!都是大的,请问他们有什么区别?