高中数学代数与函数一其他练习题133
题目内容

已知关于 x的不等式 http://picflow.koolearn.com/upload/papers/20140823/20140823160907768592.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823160907799188.gif为常数)的解集是非空集合,则 http://picflow.koolearn.com/upload/papers/20140823/20140823160907799188.gif 的取值范围是(  )

2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140823/20140823160907830301.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823160907846303.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823160907861311.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823160907877306.gif

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