高中数学代数与函数一其他练习题119
题目内容

设实数x、y满足不等式组 http://picflow.koolearn.com/upload/papers/20140823/20140823165757344986.png,则 http://picflow.koolearn.com/upload/papers/20140823/20140823165757359597.png的取值范围是(  )

2021-07-19

A.http://picflow.koolearn.com/upload/papers/20140823/20140823165757391482.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823165757406560.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823165757422529.png

D.http://picflow.koolearn.com/upload/papers/20140823/20140823165757437554.png

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