简短的英语文章
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简短的英语文章
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1.风和太阳(The Wind And The Sun)One day the wind said to the sun,“Look at that man walking along the road.I can get his cloak off more quickly than you can.”“We will see about that,” said the sun....
举一反三
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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