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若函数在区间内单调递增,则的 取值范围是( ) A. B. C. D.

若函数6ec8aac122bd4f6e在区间6ec8aac122bd4f6e内单调递增,则6ec8aac122bd4f6e

 

取值范围是(    )

A.6ec8aac122bd4f6e                          B.6ec8aac122bd4f6e                C.6ec8aac122bd4f6e                    D.6ec8aac122bd4f6e

 

 

C 【解析】略
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