某施工单位承担一机电工程项目安装任务。开工之前施工单位提交了施工进度网络计划,如图所示。在上述计划中,工作E与工作G共用一台200t履带吊车作业(其他工作不使用),E、G两工序不能同时或交叉进行施工。履带吊车到达现场后需要2天时间进行组装才能达到吊装条件。
在施工过程中,由于建设单位改变设计,使工作B推迟10天,其他工作作业持续时间不变。
为使工作E与工作G吊装连续作业,应安排履带吊车在工程开工后第几天进入现场?为什么?
实验室需要专柜保管的有() ["连接线","操作手册","原始记录表","说明书"]
数据准备的基本要求是全面、准确和丰富。
“学高为师”强调哪一类知识对教师专业发展的重要性() ["本体性知识","条件性知识","实践性知识","文化知识"]
An administrator performs a Live Partition Mobility operation. After the operation completes, the administrator runs errpt -a. What is the machine ID reported by errpt command? () [" The machine ID of the machine that logged the error"," The machine ID of the machine that it is currently running on"," The administrator defined machine ID in the \/etc\/machineid file"," The machine ID of the machine that the operating system was originally started o"]
外部效应