A.has no more than two compartments
B.has two compartments in addition to the engine room
C.will sink if any two compartments are flooded
D.will float if any two adjacent compartments are flooded
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A.radio time signal
B.comparison with a timepiece of known error
C.applying the prevailing chronometer rate to previous readings
D.All of the above
A.westerly
B.parallel to the isobars in the warm sector
C.toward the nearest high pressure area
D.faster than the accompanying cold front
A.Cygnus
B.Pegasus
C.Ursa Major
D.Andromeda
A.Selected Worldwide Marine Weather Broadcasts
B.your local newspaper
C.the Notice to Mariners
D.the daily weather map
A.stronger
B.thinner
C.more corrosion resistant
D.a lower grade steel
A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten minute intervals
A.Sailing Directions
B.Light List
C.List of Private Aids
D.Aids to Navigation Manual
A.one zone to the east
B.one zone to the west
C.two zones to the east
D.two zones to the west
A.National Geospatial-Intelligence Agency
B.Coast Guard
C.Naval Observatory
D.National Ocean Service
A.warmer，less dense，and less stable
B.cool，more dense，and drier
C.muggy and cloudy
D.extremely moist with high relative humidity
最新試題
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.
Corrosive liquids and acids should have which kind of label?（）
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Chart legends which indicate a conspicuous landmark are printed in（）.
Chronometer error may be found by（）.
Complete information on weather broadcasts throughout the world is contained in（）.