整数规划问题的最优值不大于相应线性规划问题的最优值。
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指派问题的最优指派方案是依据变换后的系数矩阵,系数矩阵中有0的位置,对应变量等于1,非0位置,对应变量等于0.
A. 对
B. 错
分配问题可以采用匈牙利法求解。
A. 对
B. 错
Choose the correct words or phrases to match the following definitions.vanish; sit out ; douse; pummel; main;pitch in; sprawl; the blues; overwhelming ;wrath1.a principal pipe, conduit, or line in a distributing system for water, gas, electricity, etc.2.to put out (a light, fire, generator, etc.) quickly by pouring water over it3.very great or very strong; so powerful that you cannot resist it or decide how to react4.to spread the limbs in a relaxed, awkward or unnatural position5. sad and depressed feelings6. to go or pass suddenly from sight7. intense anger8. to join and help with an activity9. to beat or hit with repeated blows, especially with the fist10. to stay until the end
1.According to the passage,GFL doesn't allow any conduct that will ________.
A. cause any noise to the environment
B. produce waste in the communities
C. waste more natural resources
D. do harm to its customers