A.high pressure fluid accumulators
B.driving air-powered plunger pumps
C.filling open-circuit breathing systems
D.bladder-type accumulators
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A.Sailing Directions
B.Light List
C.List of Private Aids
D.Aids to Navigation Manual
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
最新試題
Chart legends which indicate a conspicuous landmark are printed in（）.
Day-shapes must be displayed（）.
Compared to a low pressure system，generally the air in a high is（）.
Changing rescuers while carrying out artificial respiration should be done（）.
Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.
Concerning a celestial observation，the azimuth angle is measured from the principal vertical circle to the（）.
Control of fire should be addressed（）.
Clouds form（）.
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.