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【简答题】
某工程项目总承包单位上报了如下施工进度计划网络图(时间单位:月)如下图所示,并监理工程师和建设单位确认。 施工过程中发生了如下事件: 事件一:因为施工图纸滞后原因将D工作施工时间延长2个月。 事件二:单位要求施工单位采取了有效措施将H工作施工时间缩减至7个月。 问题: (1)针对原施工进度计划网络图,写出关键线路(以工作表示)并计算其总工期; 列式 计算原施工进度计划中工作G的总时差和自由时差。 (2)写出事件一发生后的关键线路,并计算调整后总工期。 (3)写出事件二发生后的关键线路,并计算调整后总工期 (4)两次事件发生后,计算工作C,工作E的总时差、自由时差。
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举一反三
【单选题】By and by, _____ go out to contact other people in person, more and more people tend to socialize with others via electronic devices.
A.
other than
B.
rather than
C.
more than
D.
less than
【简答题】The past-oriented people tend to look at the world in a______.
【简答题】Lonely people can easily become lonelier because they tend to ______.
【简答题】People in the west tend to verbalize their gratitude and compliments less than Chinese speaker.()
【简答题】o____ n. 障碍(物),妨碍
【判断题】Companies tend to hire people they know or who are introduced to them by someone they trust.()
A.
正确
B.
错误
【单选题】With the influence of the black and white media, ______.
A.
people tend to have fewer dreams
B.
the subject of people's dreams changed a lot
C.
people's idea about dream forms were affected
D.
people's dreams tend to be more active
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