1.I don’t know .A.what does he like best B.what he like best C.what he does like best D.what
题目
1.I don’t know .A.what does he like best B.what he like best C.what he does like best D.what
I don’t know _____
A.what does he like best B.what he like best
C.what he does like best D.what he likes best
选卅子？
答案
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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