yu is good student he is very tell he has curiy brown hair and is of medium build
题目
yu is good student he is very tell he has curiy brown hair and is of medium build
de 翻译
答案
玉是好学生,他告诉他是褐色头发和中等身材
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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