英语日记 一个下雨的周末
题目
英语日记 一个下雨的周末
最好字数多一点
答案
A Rainy Day the weather was so bad today as well as my mood.i failed in my test and was scolded by my teacher.i was so upset because i had try my best and spent a lot of time doing exercise.to make th...
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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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