高中数学代数与函数一其他练习题119
题目内容

设x、y满足约束条件 http://picflow.koolearn.com/upload/papers/20140823/20140823172806978829.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823172806994418.gifhttp://picflow.koolearn.com/upload/papers/20140823/2014082317280700972.gif取值范围是

2021-07-19

A.http://picflow.koolearn.com/upload/papers/20140823/20140823172807025336.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823172807041269.gif

C.[1,5]

D.http://picflow.koolearn.com/upload/papers/20140823/20140823172807056282.gif

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