Little Robert asked his mother for two cents."What did you do with the money I gave you yesterday?"
题目
Little Robert asked his mother for two cents."What did you do with the money I gave you yesterday?"
找个人教我读啊,你把这些英文读出来,改成中文我就会了!不是翻译哦,是读出来 比如Two 中文：兔 这样的
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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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