英语作文 my winter holiday plan 开头是winter holiday is coming…………
题目
英语作文 my winter holiday plan 开头是winter holiday is coming…………
答案
Winter holiday is coming, and I have a lot of plans. Firstly, I would like to read some extra books to improve my word knowledge. After that, I would like to spend some time with my friends and have f...
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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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