tothepoint

怎么教4岁的孩子学算术 ? 求积分∫x^3/(1+x^2)求助∫x3/(1+x2)等于多少, (x-x∧2)/(1-x∧3)的积分 (1+x^2+x^3)/x^3（1+x^2)的积分怎么求 积分 1/(x+2/x+5/x^3) 补充下 就是求这个方程的积分 getting I was too scared about getting caught to worry about the old lady's window 请帮我解释一下caught doing的用法我的意思是,caught 后面的动词只能跟doing吗?有何语法现象呢? get caught up over a drink这句话怎么理解?over此处是什么用法 they can't go to the party改为否定祈使句 You can't go to the party.(改为否定祈使句） They can go to his party 改为否定句 1/((1+x)^0.5+(1+x)^(1/3))的积分, 1/［(x+1)＊(x-1)^5)^(1/3)］的积分 解析—Is this black pen ( ) ? —No . It belongs to ( ).详细点A. yours ; me B. yours ; his C. her ; him D . yours ;her 王充市肆博览中的“洛阳”是个怎样的城市中的“洛阳”是个怎样的城市 王充市肆博览的主要内容. get doing with造成句子, 王充市肆博览中洛阳是什么样城市 Do they go to a movie?做肯定回答 英语翻译“Stevenson’s studies discuss the Confucian-style sense of obligation to one’s parents ,whereas I was largely motivated by prejudice ,” he says.’’Anti-Asian feeling was quite widespread in America at that time .I couldn’t be 英语翻译 英语翻译“Stevenson’s studies discuss the Confucian-style sense ofobligationone’s parents ,whereas I was largely motivated by prejudice ,” he says.’’Anti-Asian feeling was quite widespread in America at that time .I couldn’t be just 求两句英语翻译；第一段最后一句和第三段第一句翻译!如我满意会追加分!Growing up in Philadelpha, Lieberman started cooking with his stay-at-home dad when he was seven. His food-loving family had two kitchens, and he quickl They often go to movies ________（在星期六） They go to wath a movie.怎么改成否定句? ①This the pen is mine.( ) ②This pen is mine.( ) 嘻嘻……是关于“冠词”的句子 go,they,do,to,a,movie,want,to,） This pen is mine 保持原句意思 The pen ____ ____ me.This pen is mine 保持原句意思The pen ____ ____ me. This pen is not mine.It's (she）用所给单词的适当形式填空 积分2x^4+x^2+3/x^2+1 dx需要具体的过程 work up work at work on的意思?