以下施工网络图中，若节点0和6分别表示起点和终点，则关键路径为（ ）。
- A.0→1→3→6
- B.0→1→4→6
- C.0→1→2→4→6
- D.0→2→5→6
正确答案及解析
正确答案
解析
在一个网络图中有很多条路线，其中总长度最长的路线被称为关键路径。关键路径上的各事件为关键事件，关键时间的周期等于整个工程的总工期。有时一个网络图中的关键路线不止一条，即若干条路线长度相等，除关键路径外，其他路线被统称为非关键路线。
综上所述，四个选项中，选项C中的路径为关键路径。
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