A.Sailing Directions
B.Light List
C.List of Private Aids
D.Aids to Navigation Manual
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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.National Geospatial-Intelligence Agency
B.Coast Guard
C.Naval Observatory
D.National Ocean Service
A.underlined letters
B.capital letters
C.italics
D.boldface print
A.inconspicuous
B.conspicuous
C.a government facility or station
D.a radio transmitter
A.coast to aircraft operational communications
B.aircraft to ship operational communications
C.lock & bridge communications
D.aircraft to ship navigational communications
最新試題
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Complete information on weather broadcasts throughout the world is contained in（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Day-shapes must be displayed（）.
Chronometer error may be found by（）.
Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.
Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.
Clouds form（）.