树的年轮是一年一圈吗

求microsoft office home and student 2010密钥~ 用过艾利和cover story的进cover story的几个问题：1.有朗读功能吗?2.重力额感应效果如何?3.有ppt,doc,txt和pdf格式吗?4.这个型号的好使吗?比cover story wifi版多什么功能? 请问have a good “nose” for a story cover a story desk editor 什么意思? 谢谢...急!~ cover a story 你认为秦最终能够统一六国的历史条件是什么?产生了怎样的影响? _______does your mother need?She _______some apples. Does she need a dress? 否定回答怎么表达 You need not to be so worried as we have enough time left you must be hungry,——————?为什么用are not you You must be hungry 英语语法问题：1.you must be hungry .2.you must be a boss分析句子成分这两个句子都是you做主语,must 与be构成复合谓语,那么 hungry 和a boss 分别在句中作什么成分啊,请解释的详细一点.谢谢! 为什么 You must be hungry的反义疑问句是are you now,you must 什么 lunch or (否则） you will be hungryare havinghavehasare have ( ) 1.Do you need shoes for sports --- dance? A.or B.and C.of D.but BEYOND喜欢你这首歌的最后几句英语是什么意思?直接翻译过来 she be dooh my love my darlingi hunger for your touch 改错What do Amy do in spring ? 翻译She won’t be to see the card.别用工具 Did she be happy?错在哪里请说明理由 为什么用Was she happy? 1.小红有橘子51个,比苹果多24个,香蕉比苹果多62个,问香蕉有多少个?2.井底有一只青蛙,白天跳上3米,夜晚滑下2米,8天后青蛙到井口,问井深多少米?3.已知4★+3●=45,3★+ 4●=39,★+●=? 石蜡+氧气 是不是氧化反应在初中定义里.不是说氧化反应是物质和氧气化合的反映吗?但是为什么这个反应生成2种物质却还叫氧化反应? 明那,i can't buy that kind of book,beacuse they——out the day before yesterday.我本人认为，填 had been sold.但老师说不行，有答得好的我再给分 a kind of book ,the choice of job.这些of前表单数的词为什么of后的词不是复数呢?后面应跟一个表示总体概念的词,难道不应是复数吗?即使前面的词是单数．是不是也可以跟复数 为何德文和法文回相差那么多RT Adobe Reader 9.3-chinese Simplified是什么意思 AutoCAD 2006 simplified chinese是什么意思? 我上大二想学个二外是学法语好还是德语好（想选个拉丁语系的）谢谢! my bike is broken 同义句something ----- ------ ----- my bike中间三个空 一个染色体就是一条DNA分子链吗?人有四十六个染色体 在细胞间期,是不是细胞核内游动着46条DNA分子链呢?它在分裂时期复制一倍 是不是要消耗ATP的能量呢?组成dna的核苷酸是在细胞核内还是 已知Cl2和热的NaOH溶液反应生成NaClO3,H2O,x,则x为A NaClB NaClO4C ClO2D NaClO My bike is broken 句子成分 碳酸根能否在碱性溶液中存/? “ What courses are you going to do next semester?”“ I don’t know.But its about time _______ on something.”A.I’d decide B.I decidedC.I decide D.I’m deciding 1.Great changes has taken place since he lived in Shanghai.2.Home is home,be it homely or not.1.这句话对吗?有语法错误吗?应如何改?2.这句话的语法结构怎么划分?