单选题Once a fire is detected the engine should be slowed downOn no account （）.Athe trunking should be opened upBshould the trunking be opened upCthe trunking should not be opened upDshould the trunking not be opened up
单选题
Once a fire is detected the engine should be slowed downOn no account （）.
A
the trunking should be opened up
B
should the trunking be opened up
C
the trunking should not be opened up
D
should the trunking not be opened up
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相关考题：
Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT ______．A.Start the mechanical ventilation system for the engine roomB.Operate the fuel shut-off for the engine roomC.Operate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pumpD.All of the above
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