急需······一篇英语作文《Superstars enjoy their popularity at the cost of privacy》
题目
急需······一篇英语作文《Superstars enjoy their popularity at the cost of privacy》
答案
Superstars enjoy their populairity at the cost of privacy.As the saying goes:every coin has two sides.This is always the case with the superstarts,who have to sacrifice their privacy by being a celebr...
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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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