单项选择题
A.Shutting off electricity to damaged cables
B.Pumping fire-fighting water overboard
C.Maneuvering the vessel so the fire is on the lee side
D.Removing burned debris from the cargo hold
单项选择题 It is necessary to secure the forced ventilation to a compartment where there is a fire to（）.
单项选择题 At the required fire drill conducted aboard a vessel，all persons must report to their stations and demonstrate their ability to perform the duties assigned to them（）.
单项选择题 Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.