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一道已经快让我崩溃的物理题,甲、乙两球质量相等,体积关系为V甲=2V乙,构成两球的物质的密度关系为5ρ乙=4ρ甲,如果两球中只有一个是空心的,则（　　）A 、甲的空心部分体积与甲的体积比 崩溃中平面镜前有一静止的物体,距平面镜的距离为L,若将平面镜向物体移动距离为s,则物体的像向平面镜移动了（ ）；若有一束光射向平面镜,保持入射光线的方向不变,将平面镜向离开入射 填介词 the twin sisters disagreee什么each other什么everything To tell me one twin from the other is very difficult.同义句 ______very difficult____ _____one twinfrom the other. Holding hands forever,no matter how hard the future will 哲人无忧,智者常乐,怎样的人才算是哲人还有智者… 为什么说智者长乐哲人无忧 哲人无忧,智者常乐谁说的哲人无忧,智者常乐有谁说的?哲人无忧,智者常乐没有分别说是那个人?或者最配得起哲人无忧,智者常乐的人是谁啊? 请问“哲人无忧、智者常乐”如何解释? Taken good care of,the old man is living a happy life.怎么翻译? work hard to do和work hard do哪个对? Find facts in the etter that tell you they are probably true.这句句子放在word中.【etter】有下划线.显示拼写错误!请把正确的告诉我.再解释下这句话的意思.要快哦! no matter how you do,you must do itNo matter _____ you do,you must do it as well as possible.[ ]A.what B.how C.when D.where Others believe they are the only programmes that tell the truth and show society as it really is.请问as it really is.是定语从句吗? No matter how difficult the task may be ,we must fulfill it this month这个句子属于五种基本句型的哪一种?望赐教.（请用英语缩略形式,如S+V+P） we must begin testing this instrument,no matter___difficult it is A :what B:how 为什么不能用A呢 1.It took me (one week) to finish reading Jane Eyre.【对括号内部分提问】_____ ______ ______ it ______you to finish reading Jane Eyre?2.I spend half an hour reading English every morining.（改为同意句）It ____ me half an hour ____ rea It took me one week to finish reading Jane Eyre.(one week是划线部分）___ _____ _____it____you to finish reading Jane Eyre? 连词成句work,a,it,finish,week,took,the,me,to 哪位高僧大德证得神通,告诉我陈晓旭为什么会死,净空法师是不是大德.当年虚云大和尚那样苦修,在危难关 大德是什么做的?超霸的德. 大德7年是? 大德无形, 关于大德方面的名言大德是指一些道德超越了个人，是为了国家民族而牺牲自己，甚至为了全人类的利益而献身，这是人生之大德。｛希望把名言的出处也给出， getting ready=? The girl jumps high.The boy jumps higher.怎么合成一句话 The Browns are busy ___ ready for Christmas Day.A.get B.getting C.got D.为什么 my mother is busy ( )for the dinner.A,get ready B,get readying C,to get ready D,getting ready My mother is busy __(get)ready for Christmas 英语翻译 be和助动词用在什么时候语法短语什么的 这几个词的同义词是什么?弥漫,固执,沉醉,猝然,竭力,闲适,点缀,洗濯