高中数学代数与函数一其他练习题89
题目内容

如果函数 http://picflow.koolearn.com/upload/papers/20140824/20140824024045975832.png满足:对于任意的 http://picflow.koolearn.com/upload/papers/20140824/20140824024045991617.png,都有 http://picflow.koolearn.com/upload/papers/20140824/20140824024046084744.png恒成立,则 http://picflow.koolearn.com/upload/papers/20140824/20140824024046100283.png的取值范围是(   )

2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140824/20140824024046116753.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824024046131936.png

C.http://picflow.koolearn.com/upload/papers/20140824/201408240240461471231.png

D.http://picflow.koolearn.com/upload/papers/20140824/201408240240461621221.png

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