求大学六级的作文模板.
题目
求大学六级的作文模板.
答案
一、说明原因型模块 Currently, XX has been the order of the day. This does demonstrate the theory —— nothing is more valuable than XX It is clear that (1). If you (2), as a result, your dreams will ...
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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