初中英语作文Care for homeless people
题目
初中英语作文Care for homeless people
答案
Care for Homeless peopleSome people are born orphans,they are either discarded by their parents or unfortunately left alone after a disaster.However,the world is harmonious and we should do something ...
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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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