Is there _______ to help you?为什么选A
题目
Is there _______ to help you?为什么选A
四个选项
A.anything we can do.B.something can do.C.anything which we can do.
D.nothing we can't do
答案
应该是A
因为是疑问句,所以应该用anything排除含有something的B
C项中于we can do 搭配的只能是what而不能是which故不对
D项明显不符合题意
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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