今宵别梦寒

设公比为q（q＞0）的等比数列{an}的前n项和为Sn.若S2=3a2+2,S4=3a4+2,则q=______________. 设公比为q(q>0)的等比数列{an}的前n项和为Sn,若S2=3a2+2,S4=3a4+2,则q= Alice got a lot of presents and birthday cards _______ her relatives ______ her birthday partyA A for onB of atC from atD to on 黑龙江鸡西今天地震了吗? 2011年6月10日7点25分左右黑龙江省鸡西市恒山有明显震感,那里又地震了吗? 英语作文：my best gift that l ' vereceived 打错了 是8句左右 英语翻译可能有写单词写错了``` Sometimes keep slience is the best consider I still know that you are the best which treat me Met you is beautiful things in my lifeI always happiness that is only you so don't double yourselfyou are the best just I am not enough 鸡西市海拔多少米? 鸡西最低海拔是多少?鸡冠山海拔是多少? 少年闰土续写闰土还能讲哪些事 how about walking to the museum同义句=how about ----- ---- the museum ------- ------- 对括号部分提问 the young children were （very cute）._ _ the young children Where you a naught child when you were very young?如何作答 有关provide的用法can you provide us _ some imformation _ the computer?A.for;with B.with;about C.about;with D.with;with 判断：守法是法的实施的重要组成部分和基本实施方式.这句话为什么错 英语：provide的句型.说一两个就行. 续写《少年闰土》续写他们分别后说写什么,做些什么（150字） how about going to see the film?-OK.I'll__you at exactly 8:00为什么填expect 而不填wait 初三英语简单问题哈~1.You each___good sense of humour填with 还是has还是have还是are?再顺便翻译下是什么意思哦~ 英译汉to fix one's attention on somethingfor only a part of the working day or week 第一提 １０分钟内给好评! 生双胞胎的原因求教,我妈妈和我爸爸都是双胞胎,而且现在我表嫂也怀孕了（就是我大姨的儿媳妇）,怀的是双胞胎,我是男的,那么我媳妇怀双胞胎的几率有多大呢? 英语翻译dominant force 《少年闰土》续写400字,要写怎么分别, 你有外研版八年级上册课文录音,MP3可以下的么? 六年级上册《少年闰土》30年后续写200字 续写少年闰土400字.要写30年后的. Last Christmas the parents b__lots of presents. he gets lots of news什么意思 He gets ( ) money every month. A. many B. much C. a lots of 如何解释"目标"和"目的"