高中数学代数与函数一其他练习题133
题目内容

若对任意 http://picflow.koolearn.com/upload/papers/20140823/20140823162730440257.gif,不等式 http://picflow.koolearn.com/upload/papers/20140823/20140823162730456321.gif恒成立,则实数 http://picflow.koolearn.com/upload/papers/20140823/20140823162730471192.gif的取值范围是(   )

2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140823/20140823162730503245.gifhttp://picflow.koolearn.com/upload/papers/20140823/2014082316273051872.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823162730534290.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823162730581278.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823162730596252.gif

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