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整式的乘除计算麻烦大家给莪出一些稍微难一点的初一的整式计算题...最好是人教版的最好在7月份之间..... 计算 整式的乘除1.〔-а^2b^2)÷(-ab^2)×(-3ab^3）2.3×3^m÷3^m-1-(-1/1/2)^3×1/3×(-2)^3 1L溶液中含有4gNaOH该溶液的物质的量浓度是0.1mol/L 这句话怎么错了 是哪些朝代的首都? I have a hard time learning with English这句话有错吗 就是翻译 “我学英语很费时间” I ____ _____ ____ ____ ____ with English. i have a hard time learning english同义句i have（）time （）english 如何提高孩子的阅读兴趣 怎样培养孩子的阅读兴趣? 如何培养孩子的阅读兴趣? 英语翻译RT （wallet,i,it,but,found,lost,someone,my）连词成句 Did I lose my love to someone better怎么翻译? 英语翻译 英语单选 高一the quality of the cellphones produced in your factory is better than _____of their factorya.thoseb.itc.thatd.one那选的这个词是看 前面的质量（quality) 还是手机(cellphone)的单复数啊 老师教我们,书应该反复读,告诉我们( )的道理.(根据情景 地球表面,所有生物相互影响,生物与环境相互作用,形成一个称为什么的大系统? 谁知道哪些环境问题,它们都对地球造成了哪些影响?现在就要答案 I lost you ,but I find meself是什么意思 I lost myself ,but I find I lost myself ,but I find you but you have a weakness,don't rush we lost his temper ---Lily,do you konw that man?---I remember ______ him at the party,but Ican't tell his name.A.to meet B.meeting C.met D.meets ( )115.--- Do you know his address?--- He _______ me about his address but I'm afraid I have lost i( )115.--- Do you know his address?--- He _______ me about his address but I'm afraid I have lost it.A.tells B.told C.is telling D.have told 阅读短文：父亲教我听歌的答案 Thanks for your kind help!We would have ( )lost the game!A,otherwise B,or 为什么正确答案是A呢 翻译I thought you would fail after you had lost your notes 31页动手动脑（全部） 西安分别是哪些朝代的都城? 这道题怎么写呢? 在人类会使用火的时候起,是否就是人类文明的起源? 我国历史上有那些朝代都城在长安 人类文明结束什么意思? 整式的乘除若a大于0,且a的x次方等于2,a的y次方等于3,则a的(x+y)次方的植为______