英语作文 Should we watch TV
题目
英语作文 Should we watch TV
答案
Should we watch TVAs we all know,TV set is a very necessary stuff in our daily life.I think we should watch TV.There are many reasons.At first,everyone need to relax sometimes.By waching TV we can enj...
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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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