翻译recently i have had a discussion with my parents about whether teenagers should do out with ther o
题目
翻译recently i have had a discussion with my parents about whether teenagers should do out with ther on weekengs.
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最近我和我的父母就青少年在周末是否应和父母一起打扫卫生的问题进行了讨论
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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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