問題詳情
10. ______ is a system of seawater piping on board used primarily for fire fighting. The system
is supplied by a fire pump taking suction from the sea.
(A) Fire main
(B) Portable extinguisher
(C) Hydrant hose
(D) Fire damper
參考答案
答案：A
統計：A:19,B:22,C:30,D:17,E:0
難度：困難