无理数用什么字母表示

怎样在genebank查找16SrDNA序列我想设计16SrDNA的引物,但是找不到16SrDNA的序列,genebank中都是16SrRNA的序列,我是新手, genebank 中的基因序列是cDNA序列吗?如题,谢谢! 结合我国“十二五规划”,谈谈为什么社会和谐的重点在于“民生问题”? 大一、大二、大三、大四的英语单词怎么写? 求初一英语好的大神进 急This is my map（改为复数句） 2.Is it your box（改为复数句） 3.Yes, it is（改为复数句） 4.That is my sister（改为复数句） 5.No,she isn't（改为复数句） 6.Are these oranges(改 The prize of the game show is 300000RMB and an all expenses __________vacation to China.A:paying B:paid C:toe be paid D:being paid句子也请帮我翻译一下， 求问虾的种类分几种? 大神快来助我, 初一英语题大神快来助我 英语好的大神们,帮我改改错,急用!75% of the world's television programs are in English,three-quarters of the mail is written in English ,English computer keyboard is a keyboard ,a conference dare any claims to be an international conferen 英语大神无聊的帮忙改改错哦 1 _________some officials ,Napoleon inspected his army.A followed B followed by C Being followed D Having been followed by2 He was disappointed to find his suggestions_________.A been turned down B turned down C being invited D inviting准确答案 我想你 但那又如何 你没想我 的英语怎么翻译 我想你,英语怎么翻译 difficult to do /to be doneDo you think English is difficult to learn?为什么这里不是Do you think English is difficult to be learnt?English 是被学啊. 新东方梅晗老师的《雅思词汇胜经》PDF和MP3,是新东方梅晗的,不是新航道的! 关于胡敏的剑桥雅思词汇精选这本书内容的解释?我买了这本书,里面有三部分 1.Z部分2.英语常用基本词汇3.雅思真题认知词汇我现在还没学雅思,准备去学,这3部分这么多单词我怎么背?尤其是 新东方雅思词汇加强版与乱序版有何不同,哪本好用一点啊 英语翻译要求：合乎语法,有文采,可意译,机器免进.好的话追加10-50分,决不食言.汉室后宫,华服美衣,爱恋缠绵,殊不知暗藏玄机.幔帐幕帘之后的美人斗智,为争帝王之位的后宫夺宠.历经四朝,两 be meant to do的中午意思是什么? 请问be meant to do ,mean to do的区别 meant to be meant to e.g.You said we are meant to be.(注定?)说下用法 这个会议旨在解决一些重要的问题(be meant to do sth)翻译 The car is difficult to repair.请问 形容词后的不定式是怎么回事?都主动表被动吗 形容词可以修饰to do不定式么?如:见您平安归来,我们感到放心了.We were relieved to see you back safe and sound.还有一下我们希望在下个月做完这工作,但日程安排很紧。We hope to finish the work next month, but The plane is flying above the roofs of the sky "the plane is flying the clouds"是“above"还是“over"?RT还有,为什么? a plane is flying above the ___of the city.(roof) 用括号内的词翻译下列句子1我班里的大多数女生在被要求回答问题时都似乎感到不自在（ill at ease）2我对大自然了解的越多,就越痴迷于大自然的奥妙（the more.the more）3相比之下,美国的父母 sure about that和sure of that 哪个才是对的?加拿大原版语法书上说后者是对的 可为什么我看前者好像也可以那sure about that也可以吗? ABOUT so thatShe is such a lovely girl that every one likes her 改为SO THAT