高中数学代数与函数一其他练习题104
题目内容

不等式组 http://picflow.koolearn.com/upload/papers/20140823/20140823145228053667.gif表示的区域为 D,点 P (0,-2), Q (0,0),则(   )

2021-07-16

A.Phttp://picflow.koolearn.com/upload/papers/20140823/20140823145228069195.gifD,且Q http://picflow.koolearn.com/upload/papers/20140823/20140823145228069195.gifD

B.Phttp://picflow.koolearn.com/upload/papers/20140823/20140823145228069195.gifD,且Q ∈D

C.P∈D,且Q http://picflow.koolearn.com/upload/papers/20140823/20140823145228069195.gifD

D.P∈D,且Q ∈D

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