L want to know an answer that your English is good or bad?
题目
L want to know an answer that your English is good or bad?
答案
I want to know an answer that your English is good or bad?我想知道一个答案你的英语是好或坏?I think my English is not bad.I hope enhance my English ability.我认为我的英语还不错,我还希望提高我的英语能力...
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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