At which table are they sitting?
题目
At which table are they sitting?
该句与Which table are they sitting at?有何差别?
类似的句子还有：For which traffic sign do I have to look out?
From whom did you borrow it?
都是病句吗?
答案
不是病句,位置不同只不过是为了强调罢了
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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