单选

●一个活动有4道工序,一个工人只能负责1道工序。每名工人完成各工序所需小时数如表1所示,工序间的依赖关系如表2所示。完成该活动最少需要(37)小时。

 

(37)A. 10   

B. 14   

C. 16   

D.18

参考答案
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