A.hoist man
B.limit switch
C.brake handle
D.preventer bar
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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.Jack the vessel back up to a safe height
B.Proceed on to your next destination since the list is unimportant
C.Pump out all ballast to gain reserve buoyancy
D.Notify the Coast Guard
A.thank
B.be thankful
C.be thanked
D.be thankful for
A.frequent opening of hatches to permit entry of fresh air
B.regular checks of bilge levels
C.use of ear plugs to dampen engine noise
D.frequent flushing of the water spray system with fresh water
A.has little use for ocean-going mariners
B.permits the mariner to select and simultaneously calculate tidal heights for multiple ports for up to seven days
C.includes periods of daylight and nautical twilight，moon phases and a springs and neaps indicator
D.is supplied in the form of a single CD which contains the calculation program and the seven geographic Area Data Sets（ADS）providing global coverage
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After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.
Many of the lights on this coast are placed so high as to be frequently obscured by（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
After launching，an inflatable raft should be kept dry inside by（）.
The Coast Radio Stations are found in（）.
For details of these and other lights the larger scale charts and Admiralty Lists should be （）.
On an Atlantic Ocean voyage from New York to Durban，South Africa，you should expect the Agulhas Current to present a strong（）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.