求英语作文,500-1000字,
题目
求英语作文,500-1000字,
Write a sentence that begins with A,then a sentence that begins with B,then C then D,etcl.Keep going as long as you can,or until you fill the two pages.Try to keep it on the same topic.
答案
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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