七年级数学下册答案

铜生锈是铜与空气中的?共同作用的结果.铜生锈一定与?有关. 怎么才能让铜在水里不生锈怎么才能铜在水里不生锈而且还能导电! "photShop"做什么用的, The telephone is ringing.Who will receive it?这句话哪错了?这两句话是错的还是对的?错的话要解释原因、原因一定要详细、讲究语法. The telephone is ringing .Please_____the telephone Have you ever been to the Nature zoo?-Yes,I__（go）there last summer holiday,应怎么填? 有没有wish sb a success?但书上有make sb.a success的 The telephone is ringing.It ___ my boyfriend.The telephone is ringing.It __ my boyfriend.He said he would take me out to dinner tonnight.A.can be B.may not be C.must beD.mustn't be根据句意可以排除BD,AC中哪个更好? The telephone is ringing.who( )it be A could B may C does D must make sb success对吗?等于make sb succeed.等于make sb successful 唯有书香能致远,腹有诗书气自华 下列说法正确的是A酸的水溶液中一定含有氢元素B碱中一定含有氢元素C含有氧元素的物质一定是氧化物 腹有诗书气自华,最是书香能致远.的作者、含义 腹有诗书气自华 最是书香能致远啥意思 you ever Yes ,I there last July a.Did;go to;went b.Have;gone to;went c.Have;been to;wentD.Have;been to;went 英语翻译shall we volunteer to help our local organizing committee、怎么翻译 we hurried to go home?(is it right?) What can we do to help make the Qlympics a success?请朋友们尽量多列几点, help to make a play______(success)这是一篇英语阅读填空题.原文记不大住..就记住了这个短语..上文主要是介绍这个play...还有作者,应该填successful还是successfully?我认为是successfully因为make a play是排演 ·Have you ever been to France?Yes,I--there last August.A:have gone B;went要是按照时态来说是应该C.可是按语境和语义也可以选B和D 9.____ he realized it was too late to return home.9.____ he realized it was too late to return home.A.No sooner it grew dark when B.Hardly it grew dark than C.Hardly did it grow dark when D.It was not until dark that为什么选D不选C呢 ______ he realized it was too late to return home.A.No sooner it grew dark than B.Hardly did it grow dark when C.It was not until dark that D.It was until dark that 选项没问题,强调句中not...until句型的倒装,倒装的是哪部分 it's too late ,i ____go homemust ,have to ,need,need to填那个 It___until dust that he realized that it was too late to reture home.A:was B:wasn't 请问：...It___until dust that he realized that it was too late to reture home.A:was B:wasn't 请问：选哪个,为什么,如果选择wasn't 是正确的话，请 搜些唯美的词!唯美啊!宋词! 请问世界石油储备最多的地方是哪里现在的油好贵 为什么我国石油储备建设在东部地区 求中国国家石油储备完备信息.（地点和储量） We can't go now,__ __ __(一方面) it is late; __ __(另一方面),it is going to rain.格子字数对起来。 奥迪双钻★悠悠球 火力少年王1代 速度之魔(蓝)671703 这款悠悠球怎么样?大家帮我看看这款怎么样?和奥迪双钻 悠悠球 火力少年王2代 火力银电S-671707 这款相比哪个更好些．性能上! 单质与化合物反应生成2种物质的反应一定是置换反应吗?请举出反例 请问小说中的人物性格该如何描写出来?