Could you have a favor ____ me a piece of paper?
题目
Could you have a favor ____ me a piece of paper?
A.pass
B.passing
C.to pass
D.to passing
答案
passing
你可以帮我把纸递过来么
have a favor doing sth
do sb a favor
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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