【单选题】When the helm is turned on the navigation bridge,which of the listed actions will be the FIRST response in the steering room on a ship equipped with an electro-hydraulic steering gear ________.
A.
The pumps go to full stroke
B.
The six-way valve aligns itself with the running pump
C.
Both port and starboard cables are energized
D.
The synchronous receiver turns,duplicating the helm motion
【单选题】某梁高500,抗震等级为一级,其一端加密区长度为
【简答题】汽车的基体是( )。A. 车架 B.发动机 C.车身 D.车轮
【简答题】工作许可制度是保证电气作业安全的 措施。
【多选题】随着社会分工和社会多元化的发展,治理主体越来越多元化,在当代社会,治理主体主要包括()。
【多选题】我国推进社会福利社会化的总体要求包括()?