高中数学代数与函数一函数练习题74
题目内容

已知定义域为R的函数 http://picflow.koolearn.com/upload/2010-09/16/e7d90b1b-e753-4cc0-a005-6d371f5ea152/paper.files/image046.gif对任意的 http://picflow.koolearn.com/upload/2010-09/16/e7d90b1b-e753-4cc0-a005-6d371f5ea152/paper.files/image047.gif都有 http://picflow.koolearn.com/upload/2010-09/16/e7d90b1b-e753-4cc0-a005-6d371f5ea152/paper.files/image048.gif恒成立,且 http://picflow.koolearn.com/upload/2010-09/16/e7d90b1b-e753-4cc0-a005-6d371f5ea152/paper.files/image049.gif,则 http://picflow.koolearn.com/upload/2010-09/16/e7d90b1b-e753-4cc0-a005-6d371f5ea152/paper.files/image050.gif等于(     )  

2021-08-03

A.1

B.62

C.64

D.83

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