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已知实系数一元二次方程 http://picflow.koolearn.com/upload/papers/20140824/20140824012951333832.png的两个实根为 http://picflow.koolearn.com/upload/papers/20140824/20140824012951364422.png,且 http://picflow.koolearn.com/upload/papers/20140824/20140824012951380647.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824012951411396.png的取值范围是(     )

发布时间:2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140824/20140824012951426514.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824012951458542.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824012951473526.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824012951489555.png

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