英语句子成分划分并写出句子结构
题目
英语句子成分划分并写出句子结构
More than 6000 languages are spoken in the world today.
English is spoken by more than 400 million people as their first language.
Tea is grown in Southeast China.
Forests help to keep water from running away,so drought does not ofern happen.
Young trees must be looked after well.
答案
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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