中国的火箭炮丧心病狂

如果以a和b为半径画同心圆（a>b）所得圆环面积为100π,求((a+b)^2(a-b)^3)^2除以(3(a+b)(a-b)^2)^2的值如果分别以a和b为半径画同心圆（a>b）所得的圆环面积为100π,求代数式((a+b)^2(a-b)^3)^2除以(3(a+b)(a-b)^ hat exercise do you do each day?___a cold shower every morning.A.I'veB.I've gotC.I haveD.I have got i felt quite _____ what i was supposed to do then.A.unsure of B.uncertain about C.certain about请问这题目为什么是选B 呢,解释下其他两项不能选的原因吧 一枚金币的作者是谁 抗日爆发后,国民党在战场组织了哪几次会战?某公司拥有车100辆,没辆月租金3000元时.可以全部租出,当每辆月租金曾50时,未租出就会多一辆,租出的车每月要200元维护.第1问当每辆车的月租金为3 续写《一枚金币》 左边图片反应的是什么人?他们过着怎样的生活?图片： the owner went into a room at the back ,took some things out and came back to he 答对了,让我明白了奖20分_____________has been done very much.A.Few B.Nothings C.Both D.AllPut it down,Jenny!Your mustn't read__________letter.(顺便问一下,为什么是Your,不是you)A.any other one's B.anyone's C.anybody's D.anyone else' 国民党在抗日战场上的著名战役 我不再去那家超市了.I won;t go to the supermarket___________.今天早餐你想要吃点什么?___________would you like __________breakfast today? you must becareful next time改成一般疑问句We'll go to Beijing during the winter holiday.改成一般疑问句和否定句对括号里的部分提问：l want to have a flat(with three big bedrooms）My grandpa goes to the supermarket(twice a w 英语问题(答对者奖300In the Warring States Period,there,was a man in the State of Wei called Geng Lei..未完待续你知道这个中国古代故事吗?__________________ 何伤乎的乎是什么意思 都成伤了是什么意思 what has just she done?怎么回答? 兀自成伤是什么意思 What I've done...?I mean,just for you什么意思 如果有人说不想伤害你, 求冬天的一颗星星的名字北纬31度,晚6点15分左右在阳台上看到的.在西南边天空,靠近月亮的地方.今天上海天气其实不是很好,但是这颗星星却很亮,看起来比天狼星还亮.请问这颗星星是什么? 1/2×6+1/3×4+1/4×5……1/11×22＝? he ran back to my class room--------he had left his books -------原句为 he ran back to my classroom.he left his book there合并为一句 nobod can say what he has 求解一道高考数学选择题: 高为√2/4的四棱锥S-ABCD的底面是边长为1的正方形,点S,A,B,C,D均在半径为1的同一球面上,则底面ABCD的中心与顶点S之间的距离为A√2/4 B √2/2 C 1 D √2麻烦 同圆心的两个圆,过圆心做两个直角三角形（如图）,已知阴影部分面积为5平方厘米,求环形面积 明朝的第一位皇帝是谁? （）surprised us.A.what he did B.what he has done C.what did he do D.what he has done.为什么不能选has done那个完成时态呢? 看左图,已知一个顶点在圆心的直角三角形的面积是6㎝²,求阴影部分面积 You are so early today的意思是什么? what he had done和what he didRT 这两个有什么区别?,干脆把原题打出来_____could be judged from her eyes that she was terribly sorry for what he_____A As;had done B That;did C As;did D It;had done选D么？ 已知:两个等圆的半径分别为8cm,圆心分别为等腰直角三角形的两个顶点.求阴影部分的面积. 明朝第一个皇帝是谁?当过和尚的.姓朱的!