There is too much in the media that is harmful to young people
题目
There is too much in the media that is harmful to young people
这是什么句型啊？
答案
that is harmful to young people是定义从句
先行词是media
整个句子是there be句型,套了一个定语从句
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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