英语作业没完成300 检讨书
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英语作业没完成300 检讨书
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Learn,to comply with school discipline school rules is that every student should do,and it is the Chinese nation's fine tradition of the United States and Germany,but I,as contemporary students who do...
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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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