单项选择题
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
The company should establish procedures by which（）recei...
单项选择题The company should establish procedures by which（）receive relevant information on the safety management system in working language or language understood by them.
A.New personnel B.The ship's personnel C.Personnel transferred to new assignments D.Visitor
When two power-driven vessels are meeting head-on and t...
单项选择题When two power-driven vessels are meeting head-on and there is a risk of collision,each shall（）.
A.stop her engines B.alter course to starboard C.sound the danger signal D.back down
