His sister is hungry.就hungry提问.有多少种问法?
题目
His sister is hungry.就hungry提问.有多少种问法?
答案
How is his sister?
what's the problem with his sister
what's the matter with his sister
what's wrong with his hister
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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