so now i am in Grade 9,i want to have a partner to practice english with
题目
so now i am in Grade 9,i want to have a partner to practice english with
i don't mind where are you from .in a word .let's make it in english,in the future q1020771427
you are 怎么搞的
答案
OK~I also like English very much ,I'm happy to make friend with you I'm in Grade 9 too!
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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