美育教育

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? home is home ,be it never so homely turn to 的用法the conversation turns to sport谈话转向体育有没有被动 turn to sd.和什么用法一样 get to及turn的用法（表示“变”的）急求讲讲这两词的详细用法,越明了越好!满意的话还有额外悬赏分! What lesson are you going to ___ next term?A .take B .make C .find D.get a book sale 的中文意思 book.翻意中文是什么意思!谢谢 book me for an event的中文意思是什么? a thin book 中文意思是什么准确 南昌话森婆哩是什么意思 南昌话者什么意思 南昌话里座信是什么意思 Be it ever so late ,I must do another experiment .14.______,I must do another experiment.a.Be it ever so late b.It is ever so latec.It be ever so late d.So late it be ever为什么选A 南昌话精掉头是什么意思 it's so late. be it ever so late请尽快给我答复 My bike is broken选择 A It doesn't matter B I'm sorry C Excuse me D I'm sorry to hear that My bike is broken等于什么?