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设f(x)是定义在http://picflow.koolearn.com/upload/papers/g02/20121005/201210051442453391045.png上可导函数且满足http://picflow.koolearn.com/upload/papers/g02/20121005/201210051442456031709.png对任意的正数a,b,若http://picflow.koolearn.com/upload/papers/g02/20121005/20121005144245717707.png则下列不等式恒成立的是   

发布时间:2021-07-20

A.http://picflow.koolearn.com/upload/papers/g02/20121005/201210051442458252024.png

B.http://picflow.koolearn.com/upload/papers/g02/20121005/201210051442459452024.png

C.http://picflow.koolearn.com/upload/papers/g02/20121005/201210051442460492017.png

D.http://picflow.koolearn.com/upload/papers/g02/20121005/201210051442461632017.png

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