my favorite book 夏洛的网
题目
my favorite book 夏洛的网
答案
红楼梦的, As a student,we have study for many years.During there years,we study Chinese,English,science and so on.In this period,with the improvement of our knowledge,we not only read the books...
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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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