单项选择题
A.The fire pump should be started
B.The boiler rims should be secured
C.The fixed CO2 system should be initiated into action
D.The engine room ventilation should be secured
单项选择题 As soon as you hear the fire and emergency signal, you should ensure that the （）.
单项选择题 While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take?（）
单项选择题 While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take FIRST?（）