Each box is an activity; the number it contains is the duration of the activity in days. The duration of the critical path is(75

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问题 Each box is an activity; the number it contains is the duration of the activity in days. The duration of the critical path is(75)

选项 A、16days
B、14days
C、19days
D、20days

答案C

解析 关键路径为最长时间的线路,3+6+7+1+2=19。
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