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已知 http://picflow.koolearn.com/upload/papers/20140824/20140824011755931266.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824011755947308.png满足约束条件 http://picflow.koolearn.com/upload/papers/20140824/20140824011755962993.png, 若目标函数 http://picflow.koolearn.com/upload/papers/20140824/20140824011755978902.png的最大值为7, 则 http://picflow.koolearn.com/upload/papers/20140824/20140824011755994575.png的最小值为(      )

发布时间:2021-07-20

A.14

B.7

C.18

D.13

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