单项选择题
A.opening the automatic drain plugs B.draining the water pockets C.using the electric bilge pump D.using the bailers and cellulose sponge
A vessel in distress should send by radio telephone the...
单项选择题A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
A.distress position B.spoken words Mayday，Mayday，Mayday C.ship's name D.ship's call letters
A distress signal（）.A.consists of 5 or more short blast...
单项选择题A distress signal（）.
A.consists of 5 or more short blasts of the fog signal apparatus B.may be used separately or with other distress signals C.consists of the raising and lowering of a large white flag D.is used to indicate doubt about another vessel's intentions
AS SOON AS I HAVE FURTHER INFORMATION I WILL MAKE ANOTH...
单项选择题AS SOON AS I HAVE FURTHER INFORMATION I WILL MAKE ANOTHER ANNOUNCEMENT. I ASK YOU KINDLY TO REMAIN CALM. THERE IS NO DANGER AT THIS TIME. These words are likely from（）.
A.the captain of a vessel in distress B.representative of ship owners C.an officer from port authorities D.the pilot of a vessel entering a port in foreign country
