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这道题杂做.快速阿.关于先化简再求值.写的完整点.（8ab的平方-1）-3（a的平方b-三分之一）+2（a的平方b-4ab的平方）,其中A,B,满足a+1的绝对值+（b-2)的平方=0 孔明借箭的主要内容 求几篇有关军训的日记、总结、心得体会之类的文章字数在600字左右 要求：自己写的 一个两层书架,上层放的书比下层的3倍还多18本,如果把上层的书拿101本放下层,那两层所放的书本数正好相同.原来上、下层各有几本书?（用方程解）用方程解 单词arrive的同义词是什么? arrive there的同义词单词 A Mr.Brown came to see you this morning.为什么用a Mr.Brown而不用the 加强国际间电子商务合作论文怎么写?有写过的麻烦传给我 I want to go to the National Stadium this weekend 对the National Stadium 进行提问 claim demand require request这四个词都有“要求、需要”的意思,它们有什么区别呢?希望能详细说一下. we need a waiter .please write a want ad.-----a waiter A to B for C of D in 选哪一个,为什么 celebrate和congratulate的区别 is **days还是are **days two nouths后面用is还是aretwo mouths ----- quite a long time A be B are C is D was 八年级英语小对话 观沧海由什么字统领 that is what i am talking about. what are the major qualities for contemporary leaders 在一条平直两车道公路上,有甲乙两车同向行驶,甲在前,车速为v1=10米每秒,匀速前进,乙车在后,车速为v2,前面停着一辆丙车,三辆车的车长均为5米,当甲乙两车相距为s1=30米时,甲丙两车相距为s2=50 (Four students are talking about the future after class)（Four students are talking about the future after class）.Deng Yu:In 2050,China will be richer than it is now ,Beijing will be getting ready for the 40th Olympic in 2052.We will see the blue 选择正确答案(Four students are talking about the future after class)（Four students are talking about the future after class） .Deng Yu: In 2050, China will be richer than it is now ,Beijing will be getting ready for the 40th Olympic in 2052 The students in the classroom are-----what to do after school.A.talking with B.talking toc.talking in d.talking about __that sign interesting?yes,I think so. A does B is 还要尽可能的回答为什么,要让六年级的学生听懂 我写了一首词《江城子》,大家看看怎么样?突来兴趣,写了一首宋词《江城子》,大家看看写得怎么样,不管好与不好,有啥意见、建议尽管说,没别的目的,只是想看看大家的看法,呵呵,首先谢谢你 本人初写词者写了一首词望有高人指点.谢谢! 江城子本人初写词者写了一首词望有高人指点.谢谢! 江城子 初雪即事 纷纷大雪从天坠,白大地,寒心碎.去年楼台、今有谁人倚 江城子是这首词的什么? 如图所示,放在水平面上的斜面体倾角为θ,高度为h,顶端装有小滑轮,斜面体底端有一质量为m的小物体．不计一切摩擦.不可伸长的轻绳一端固定在竖直墙面上的P点（P与斜面体等高）,另一端通 一轻杆BO,其O端用光滑铰链铰于固定竖直杆AO上,B端挂一重物,且系一细绳,细绳跨过杆顶A处的光滑小滑轮,用力F拉住,如图6所示．现将细绳缓慢往左拉,使杆BO与杆AO间的夹角θ逐渐减小,则在此过 The dilemma of humans is that we want to be understood, yet fear being seen throughfear的主语呢 后面接doing是么 being understood is much conciliative to one person 写一篇‘Many thing can affect our feeling'的英语短文! 初中化学如何避免细节问题得到满分 我基础很好.但是总是拿不到满分,但是初中化学是皮毛,请给位指点,高分!