初中英语作文介绍我的家乡重庆带翻译
题目
初中英语作文介绍我的家乡重庆带翻译
答案
第一个 home is located in southwest China,surrounded by mountains,there are two river,the Yangtze River and Jialing River,which is the largest city in China with a total population of over thirty mill...
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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