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若存在实数 http://picflow.koolearn.com/upload/papers/20140823/20140823200544105536.png,使 http://picflow.koolearn.com/upload/papers/20140823/20140823200544120780.png成立,则 http://picflow.koolearn.com/upload/papers/20140823/20140823200544136338.png的取值范围为(    )

发布时间:2021-07-21

A.http://picflow.koolearn.com/upload/papers/20140823/20140823200544183560.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823200544198577.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823200544214169.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823200544230550.png

D.http://picflow.koolearn.com/upload/papers/20140823/20140823200544245574.png

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