与某建筑公司(乙方)订立了基础施工合同，同时又与丙方订立了工程降水合同，基础施工合同约定采用综合单价承包。该基础工程施工网络计划如下图所示。
甲乙双方约定某年6月15日开工，在工程施工中发生了如下事件。
事件一：由于降水施工方(丙方)原因，致使工作J推迟了2d。
事件二：6月21日～6月22日，整个施工现场停电造成停工2d。
事件三：因设计变更，工作B土方工程量由300m3增至350m3，工作持续时间增加1d，该工作综合单价为每立方米50元。
问题：
在不考虑事件一、二、三的情况下，说明该网络计划的关键线路，并指出由哪些工作所组成？
参考答案：
关键工作由A、B、C、D、E组成。
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| Dear Zhao Pei, I got your story from my pen pal. I know you have many 1 rules in your house. It's really 2 . In my house I don't have many rules. I can go out 3 school nights, but I need to go home 4 ten o'clock. I like 5 the drums. It's really noisy (充满噪音的) when I play them, but Mom doesn't 6 it. She thinks it's OK. I have a computer in my room. I do my homework on my computer. I like playing computer games, and I often play them when I finish (完成) my homework. "Homework comes first," Mom 7 says to me. I can sleep 8 on weekends and I enjoy 9 books in bed on weekend mornings. On Saturday afternoon, I usually clean my bedroom. Mom cleans the other rooms, but I often 10 her. On Sunday afternoons, I go to the music club and play the drums with my friends. It's fun. Yours, William | |||
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