How much are those pair of shoes?
题目
How much are those pair of shoes?
答案
所给句子不对!
可以修改为：
How much is that pair of shoes?那一双鞋多少钱?
or
How much are those pairs of shoes?那几双鞋多少钱?
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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