There are so many kinds of music to hear that you are sure to find some music that will greatly int
题目
There are so many kinds of music to hear that you are sure to find some music that will greatly int
答案
听到各种音乐,肯定有种音乐触动你的内心.
举一反三
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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