Why Li Yuchun is becoming more and more popular and famous
题目
Why Li Yuchun is becoming more and more popular and famous
In fact,I've never listened Li Yuchun's music.But I can get her imformation form all kinds of websites and TV channels.Does her music very melodious?
答案
because .chun ge~pure man.iron blood ture guy.he get the most powerful body in the whole universe.
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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