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1立方厘米铜的质量为8.9克,如何只利用天平测量1块面积为10平方厘米的均匀铜片的厚 1立方厘米的铜为8.9克,如何利用天平测量一块面积为10立方厘米的均匀铜片的厚度?还没学过厚度1立方厘米的铜为8.9克,如何利用天平测量一块面积为10立方厘米的均匀铜片的厚度?是还没学过密 my blond hair I have black underneath the blond layer. They have brown hair and blue eyes,so maybe they are____ A.America B.American C.the USAD.the America 求详细的解答过程,如果很透彻,加100分,急~~~~~~~~ prefer doing to 加次氯酸钠,对水质的COD及氨氮的值有何影响? 次氯酸钠能增加处理好了的水的COD的吗?我污水厂新进了一些次氯酸钠溶液,用来给处理好的出水脱色,可是又怕加入到出水中,引起出水cod升高,不知怎么办?于是想问问专家们,此想法是否可行? What do you mean _________ saying that I’m lucky?A．at B．on C．by D．of原因？ 将下列句子补充完整 生活是一本书（ ),生活是（ ）,（ ） these syudents like the school very much,their parens have come to china for business 用定语从句句型转换the teaching building looks nice .the building was put up last year一样 I like beijing very much very much提问 They go shopping in the evening.（改为一般疑问句） 连词成句1.ice,please,some,to,the,add,coffee 2.full,and ,room,of,the,balloons,is,flowers3.throught,can,car,go,gate,the4.we condition,good,should,in,keep,them some picyures,in the room,can,i,see连词成句 假如生活欺骗了你表达了作者怎样的人生态度 假如生活欺骗了你一生中侧重表现作者积极的人生态度的几句试试 假如生活欺骗了你表达了怎样的人生态度 假如生活欺骗了你表达怎样的人生态度 选择：We （ ）Ruby`s success to her intelligence and hard work.A.owe B.attribute选B,请解释一下这两个单词的区别, He asked ,"What is the matter?"变间接引语外研版八年级课本用的是He asked what was the matter.而workbook 上是He asked what the matter was. 句中为什么用meant?I asked him what a word meant.meant在这里是做为mean的过去式还是怎么样呢I asked him what a word meant.meant在这里是做为mean的过去式还是怎么样呢句中meant的意思是什么 he asked,"what is the matter?"改间接引语为什么是he asked what was the matter.请说具体一点,不要说什么固定搭配,说语法上的原因. “谁爱odile” 翻译成英语 游记500字去那里游玩,详细介绍一个景点. you dont make sense Some things,as time passes by,the only nostalgia Some amazing things.要有中文翻译 ( ) the evening,they do their homework. odile怎么发音还有这个名字的故事 They are't do their homework in the evening.(改错)是[他们晚上不做作业]的翻译,我觉得没错,可是老师说错了.哪里错了?急…… Odile怎么发音? odile是什么意思啊?谢谢各位daxia!