learning at high school and learning at college
题目
learning at high school and learning at college
求此标题的英文作文
答案
The life and study between high school and college are completely different. First, the study. one has half day free every week,and every day one gets up very early and stays up late at night in the h...
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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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