今日事今日毕的英语作文
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今日事今日毕的英语作文
关于今日事今日毕的英语作文
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Never Put Off Until Tomorrow Whst You Can Do TodayWe have been told that mever put lff untill tomorrow what you can do today since childhood.However,there are still many people who like puttin
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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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