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

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单项选择题

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

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

单项选择题

ALL PASSENGERS OF DECK NO.2 ARE REQUESTED TO FOLLOW THE CREW MEMBERS WHO WILL ESCORT YOU TO YOUR ASSEMBLY STATIONS. From this sentence you can concluded that the vessel is in（）.

A.immediate danger to collide with another vessel
B.a situation in which more passengers will embark on board
C.berth and ready to disembark her passengers
D.distress