A.usually
B.commonly
C.exceptional
D.unavoidably
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A.An alternator
B.An electric motor
C.A diesel engine
D.A main switchboard
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
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