跪求介绍家人的英语作文 请以第三人称写
题目
跪求介绍家人的英语作文 请以第三人称写
答案
He is her father ,he is a cleaner,quiet and ordinary looking.People don't pay attention to the figures in the public when the cleaners at work.He is one of them.He has to get up very early in the morn...
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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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