我要一篇关于假期旅行计划的英语文章
题目
我要一篇关于假期旅行计划的英语文章
答案
During the summer,my father,my mother went to Yunnan,where things are strange and different forms of speaking people really listen to their tire. In Yunnan,the had many strange things,which I h...
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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