某工程包括A、B、C、D、E、F、G七项工作，各工作的紧前工作、所需时间以及所需人数如下表所示（假设每个人均能承担各项工作）该工程的工期应为 （ ） 天。
- A.13
- B.14
- C.15
- D.16
正确答案及解析
正确答案
解析
根据题意可画出带时标的双代号网络图如下图所示：
可识别出关键路径为：A—B—D—E—G工期为15天。调整非关键路径上的活动，使得 各路径上并行活动人数最少的方案如下图。
故该工程的工期应为15天。按此工期，整个工程最少需要7人。
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