负数用科学计数法表示

happy 18th birthday ,这句话这么说有错误吗?悬赏提高到100，来个明白人，就是这意思，整准点要短句 求Sum 41的 with me ,pieces ,The Hell Song 吉他谱不带电的. set up 和establish 和 built的区别这三个词（组）有什么区别吗? found.establish.set up.build的区别 求.set up / establish / found 的区别,能具体给个例子吗 build与set up的区别? the show is very wonderful.(同义句) ____ ___the show is! The game is wonderful!The students are very bored.这句话中哪里错了? 四级口语证和bec中级哪个证书好一点?四级550才能 考口语.四级没过550是不是可以考别的口语,比如BEC中级等? 本人四级616,口语不是很好,想考BEC,不知道考中级还是考高级? sale 怎么读?请写出谐音读法.如:Good morning[顾得摸您] 改衣服 英语怎么说 阅读理解：A jumbleis a sale of mixed collection of old and unwanted goods. 把衣物全部扔掉我用英语怎么说 build是什么意思?与用法? height 与 build 作名词时各有一些怎样的用法.如题.希望能看到具体的例子. build on的用法我记得意思是建立于，the new house is built on the yong trees对吗，麻烦讲清楚些 If you want to renew the book,you must ___it back for that.take carry put bring到底是什么 of medium build 和 a medium build 的动词用法 please ---the book ---the library when you finish itA.return,toB.return ,backC.returns,toD.returns ,back 英文在线改错 Maria went to the shoes stores to buy a pair of shoes yesterday Mass advertising helped to the emphasis from the productionMass advertising helped to_______the emphasis from the production of goods to their consumption.A vary B shift C lay D moderate选哪个?为什么? An increase in production of consumer goods 这句话 啥意思?An increase in production of consumer goods 这句话 啥意思? THE FALL OF ADVERTISING AND THE RISE OF PR怎么样 they don't believe I am right,( A.do they B.don't they C.am I D.aren't I They Do,They Don'T 歌词 某钟表分针长10cm从1时到2时,分针走了多少厘米?分针扫过的面积是多少平方厘米? 一个钟表的分针长10cm.从0时到12时,分针针走过了多少厘米?分针扫过的面积是多少平方米?多少平方厘米 不是平方米 打错了 “防潮气” 英语翻译 今天,我要朗读某某某文章的其中一段.这句话翻译成英语. Her brother went to bed after he finished his homework.(用not...until改写) 英语翻译