Everyone knows a good mother will do anything to look after her child.Recently,an accident in
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Everyone knows a good mother will do anything to look after her child.Recently,an accident in
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Everyone knows a good mother will do anything to look after her child.Recently,an accident in Washington’s Colville National Park showed that mother’s love is the greatest again.On September 2nd,the...
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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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