A.fix B.dead-reckoning position C.running fix D.probable position
A.heavy rain within six hours B.a decrease in wind velocity C.a change in the present weather conditions D.that fog will soon set in
A.List of Lights B.Coast Pilot C.Sailing Directions D.List of Radiobeacons
A.I am in doubt as to your actions B.My engines are full speed astern C.I desire to overtake you D.I am operating astern propulsion
A.two red lights B.one green light C.one white light D.one amber light
A.The higher high waters B.The lower high waters C.The lower of the two daily tides D.All high waters
A.The motion of the apparent sun is along the ecliptic B.Measurement of time is along the celestial equator C.The speed of the Earth's revolution is not constant D.There are variations in the Earth's rotational speed
A.SHM B.Admiralty TotalTide C.Admiralty EasyTide D.Ocean Passages for the World
A.Ocean Passages for the World B.Admiralty List of Radio Signals C.IALA Maritime Buoyage System D.Admiralty List of Lights and Fog Signals
A.Distress position B.Spoken words“Mayday，Mayday，Mayday” C.Ship's name D.Ship's call letters
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