有哪些错误i has a aunt.her name is lily .she is thirty years old.she likes go shopping .her husband is a
题目
有哪些错误i has a aunt.her name is lily .she is thirty years old.she likes go shopping .her husband is a teacher.they have a lovely son.he is years old
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有哪些错误i have an aunt.Her name is lily .she is thirty years old.she likes (going) shopping .Her husband is a teacher.they have a lovely son.He is 12 years old
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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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