雅思作文求修改
题目
雅思作文求修改
somepeople think they have the right to use as much fresh water as they want,while others believe governmentsshould tightly control the use of fresh water as it is a limited resource .Discuss both views andgive your own opinion.
我晕＝＝字数限制 写的作文弄不上来－－
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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