there are millions of webdites on the Internet there I _____ a lot of useful
题目
there are millions of webdites on the Internet there I _____ a lot of useful
there are millions of webdites on the Internet there I _____ a lot of useful ____on the websites
A are informations B are information C is information D is informations
答案
选C
【information】不能做可数名词,因此不能加复数”s“
既然是不可数名词,因此谓语动词也应该是is,而不是are
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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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