急需初二暑假生活英语作文80词左右
题目
急需初二暑假生活英语作文80词左右
答案
I spend a good holiday this year.And in the holidays,I do a lots of things.I'm a person who likes sports.I often do some sports in the holidays,just like play basketball.I think that play basketball c...
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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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