There are many laboratory in this building.(改错)
题目
There are many laboratory in this building.(改错)
The students are main from China.
This tastes very well.There is some meat in it.
答案
There are many laboratory in this building.- 改laboratory为复数laboratories.要跟前面的are还有many对应的The students are main from China.－ 改形容词main为副词mainly,副词才能修饰后面的状语.This tastes v...
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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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