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问题

在下面的项目活动图7-3中,关键路径的时长为(10)周。

A.27

B.28

C.29

D.30

参考答案
正确答案:B
解析:参考(1)题和(7)、(8)题的分析。通过计算,可知关键路径为B→F→K→0,即28周。
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