he has to do his homework after school.对do his homework 提问 （ ）does he have to（ ）after schoo
题目
he has to do his homework after school.对do his homework 提问 （ ）does he have to（ ）after schoo
he has to do his homework after school.对do his homework 提问
（ ）does he have to（ ）after school
答案
（ What ）does he have to（do ）after school?
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．
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