I hear of there is a baby elephant in the zoo.So I want to ____ at it.
题目
I hear of there is a baby elephant in the zoo.So I want to ____ at it.
A looks
B look
C see
D sees
答案
选 B 从后面的at看就可以排除C.D look at 是固定搭配.want to do sth.可排除A
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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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