单项选择题
A.the chief engineer leaves the engineer room with the engine room log book at first
B.releasing compressed air in the air receiver and closing the watertight door
C.stopping all the running machineries and electric devices
D.closing the quick-closing valves of all the oil tanks, stopping the boiler and releasing gas
单项选择题 The SOLAS convention prescribes that the emergency steering drill should be carried out one time every （） months.
单项选择题 According to the SOLAS convention, the bilge water system （）
单项选择题 The SOLAS convention about “passenger ship and dried food ship damage control” prescribes that the engine room emergency bilge water suction should connect with （）