This is one of the longest bridges that ______on this river.
题目
This is one of the longest bridges that ______on this river.
A is ever built B have ever been built C was ever built D has ever been built
选B 为什么不选D 不是单三么?
答案
这种情况下(one of ...s) 后面的定语从句修饰的是 后面的复数名词.
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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