定时限过电流保护采用两相不完全星形接线时，只能反映（）故障。 ["单相接地","相间短路","两相短路","三相短路"]
与PPP融资方式相比，BOT融资方式中民营部门的地位是（）。 ["与政府部门的协调关系弱，对项目的控制权大","与政府部门的协调关系强，对项目的控制权小","与政府部门的协调关系弱，对项目的控制权大","与政府部门的协调关系强，对项目的控制权小"]
Which three best practices should be implemented at the campus backbone submodule to supportthe server farm module？ （） [" Implement highly redundant switching and links with no single points or paths of failure."," Implement server load balancing."," Implement the Hot Standby Router Protocol （HSRP） for failover protection."," Implement intrusion detection with automatic notification of intrusion attempts in place."]
双向体积管一次检定运行由（）往返行程组成 ["置换器","发讯器","检测器","换向器"]
遗迹化石
按照监督的主体，可以分为（）和（）。
