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问题

图7-6中,从源点到终点的关键路径是(22)。

A.13

B.10

C.12

D.14

参考答案
正确答案:B
解析:按照(1)题介绍的方式求一个AOE的关键路径,一般需要列出一张表格,逐个检查。图7-6所示的AOE的关键路径的表格如表7-2所示。

因此,图7-6的关键活动为a1,a2,a4,a8和a9,其对应的关键路径有两条,分别为(V1,V2,V5,V7)和(V1,V4,V5,V7),长度都是10。
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