Does she have some pen pals?
题目
Does she have some pen pals?
Where do paul and Steve come from?
Does she enjoy playing the piano?
Mr White speaks French and he can speak a little japanese.
答案
Does she have some pen pals?她有笔友吗?Where do paul and Steve come from?保尔和史迪夫来自哪里?Does she enjoy playing the piano?她喜欢弹钢琴吗Mr White speaks French and he can speak a little japanese....
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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