求一篇 题目为Why English is important in our life 的文章,要长一点的.
题目
求一篇 题目为Why English is important in our life 的文章,要长一点的.
答案
IF YOU are currently learning English in a school,college or institute of further education,you join approximately one billion other people around the world who are engaged in the same pursuit.However...
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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