there are about ()students in our school.A four thousand B four thousands of C four thousand of

there are about ()students in our school.A four thousand B four thousands of C four thousand of

题目

there are about ()students in our school.A four thousand B four thousands of C four thousand of
D thousand of

答案

举一反三

已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．

我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好

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想找英语初三上学期的首字母填空练习……

英语翻译

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