The novelist spent most of his time writing ,but none of them was published during his lifetime
题目
The novelist spent most of his time writing ,but none of them was published during his lifetime
改错
答案
writing 后面加 novels
不如them无法替代.
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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