ECDIS should be capable of（）all chart information necessary for safe and efficient navigation originated.

A.CO₂ system
B.Foam system
C.Dry power system
D.Water supply system

A.Starting of a fire pump
B.Reporting to stations
C.Preparing for the duties described in the muster list
D.Checking of cargo handling equipment

A.Hydrometer
B.Hygrometer
C.Spectrometer
D.Barometer