A.An alternator
B.An electric motor
C.A diesel engine
D.A main switchboard
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A.Cooling system
B.Alarm system
C.The air conditioning installation
D.The mooring equipment
A.pressure
B.velocity
C.flow rate
D.temperature
A.permissibly
B.permissible
C.no permissible
D.not permissible
A.along
B.will
C.throughout
D.for
A.an alternating
B.a rush
C.a direct
D.an exciting
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The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）