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如图,目标函数P=ax+y仅在封闭区域OACB内(包括边界)的点http://picflow.koolearn.com/upload/papers/g02/20120730/20120730144856859951.png处取得最大值,则a的取值范围是http://picflow.koolearn.com/upload/papers/g02/20120730/201207301448572498060.png

发布时间:2021-07-19

A.http://picflow.koolearn.com/upload/papers/g02/20120730/20120730144857339931.png

B.http://picflow.koolearn.com/upload/papers/g02/20120730/20120730144857420946.png

C.http://picflow.koolearn.com/upload/papers/g02/20120730/20120730144857499910.png

D.http://picflow.koolearn.com/upload/papers/g02/20120730/20120730144857596926.png

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