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【简答题】
某物流公司从三个产地A 1 ,A 2 ,A 3 运输某物资到三个销地B 1 ,B 2 ,B 3 ,各场地的供应量(单位:吨),各销地的需求量(单位:吨)及各产地到各销地的单位运价(单位:元/吨)如下表所示: (1)在上表中写出用最小元素法编制的初始调运方案(用其他方法不计成绩); (2)检验上述初始调运方案是否最优,若非最优,求最优方案,并计算最低运输总费用。
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