Mr wang goes boating with his daughter every sunday 对划线部分提问划线是every sunday
题目
Mr wang goes boating with his daughter every sunday 对划线部分提问划线是every sunday
答案
How often does Mr Wang go boating with his daughter?
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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