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若存在实数 http://picflow.koolearn.com/upload/papers/20140824/20140824015131002266.png使 http://picflow.koolearn.com/upload/papers/20140824/20140824015131018619.png成立,则实数 http://picflow.koolearn.com/upload/papers/20140824/20140824015131034283.png的取值范围是(  )

发布时间:2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140824/20140824015131049512.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824015131080425.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824015131096516.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824015131112427.png

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