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设等比数列an的公比q=2,前n项和为sn,则s4\a2= 设等比数列an的公比q=2,前n项和为sn,则s4除以a2= Some people don't need a mailbox to send a message.They use a bottle instead.Here are two stories a这篇文章的全文你有吗? 请问世界十大名牌手表的排名顺序是. 世界十大服装奢侈品牌 魔方转一面我刚开始玩魔方,连一面都转不起来,那位高手帮帮忙啊!我要的是一横一横的,不要十字的,最好详细些 魔方第一面怎么转 They hope to find even ways to use them中的even是什么意思 英语翻译And it provides listeners,even those who are native English speakers,with information they cannot find elsewhere.最后一句话怎么翻译? 求作文：为了自己的梦想!谢谢各位啦. 关于How about clothes和How do you like clothes还有What do you think of clothes的用法?clothes只是例子主要是问在什么语境下该用什么。我学的是买衣服的课文，所以用到这些句型 what do you think of = how do you like =how do you ( )about括号处填feel 还是think? what do you think about与how do you like 相当吗 求一篇家给了我希望的作文自己写 今天用.只是参考 what about sth,how about sth,how do you like sth,what do you think of sth都有什么区别? Many people need some exercise （改为否定句） 他的女儿死于一场车祸,用英语怎么说 ( )Look!this is ___________language lab.A.they B.their C.them Can you help ( A.them B.they C.thCan you help ( A.them B.they C.their请问选择哪一项 他的女儿死于一场车祸用英语怎么说 give___to____.A:they ,them B:them ,them C:them ,they选哪个啊? 英语翻译三月二十六号,5点时放工,我如往常一样在KING CENTRE这里要驾车回去SERIAN,那时候我在PARKING PLACE里,正准备出去时,看见前方的车子也要出去了,我看见他的车子向前移动了,就以为他出了, 科幻作文600字 ______are Young Pioneers.A.They all B.All them C.All they D.All of them (选择) 作文我想有个家 Some people plan to __ a volunteer project to help the disabled children.A.put up B.think up C.set up D.cheer up 酒后驾驶易造成车祸的原因 how do you think of it和what do you like it的区别属于什么语法点 –What do you think of teaching,Bob?–I find it fun and challenging.It is a job ___ you are doing something serious but interesting.A.where B.Which C.When D.that 初中科幻作文600字左右,急要!要最新的. 初中科幻作文500字就行 初中科幻论文