高中数学代数与函数一其他练习题140
题目内容

若不等式 http://picflow.koolearn.com/upload/papers/20140824/20140824044503989859.png对满足 http://picflow.koolearn.com/upload/papers/20140824/20140824044504005594.png的所有 http://picflow.koolearn.com/upload/papers/20140824/20140824044504021375.png都成立,则x的取值范围是(    )

2021-07-21

A.http://picflow.koolearn.com/upload/papers/20140824/20140824044504036877.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824044504052760.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824044504067649.png

D.http://picflow.koolearn.com/upload/papers/20140824/201408240445040831000.png

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