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单项选择题

While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?
A.Make an entry in the official logbook
B.Open the master control valves on the fixed CO2 system
C.Start the fire pump and check discharge pressure
D.Secure auxiliary condenser overboard discharge

A.Make
B.Open
C.Start
D.Secure
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