单项选择题
A.CO2 system B.Foam system C.Dry power system D.Water supply system
Each fire drill shall not include（）.A.Starting of a fir...
单项选择题Each fire drill shall not include（）.
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
Which instrument is used to measure the relative humidi...
单项选择题Which instrument is used to measure the relative humidity of air?（）
A.Hydrometer B.Hygrometer C.Spectrometer D.Barometer
（）is normally responsible for maintaining records of co...
单项选择题（）is normally responsible for maintaining records of corrections to navigational charts and nautical publications.
A.The chief officer B.The second officer C.The third officer D.The PSC officer
