英语作文hao do I deal my problems
题目
英语作文hao do I deal my problems
答案
Every time I get in trouble,I would use the following steps to solve them.The first step is to find why I get these problems.The second step is to think that how many methods could be used to take me ...
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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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