A.as a mass of warm，humid air rises into the atmosphere and cools，condensing moisture into small droplets
B.as winds blow across bodies of water，the sun causes the moisture to be absorbed and move upward forming clouds
C.dry air compresses moisture from the atmosphere into clouds
D.when the relative humidity of the atmosphere is low
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A.high pressure fluid accumulators
B.driving air-powered plunger pumps
C.filling open-circuit breathing systems
D.bladder-type accumulators
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
最新試題
Corrosive liquids and acids should have which kind of label?（）
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
Compared to a low pressure system，generally the air in a high is（）.
Clouds with the prefix “nimbo” in their name（）.
Dacron sails，when not in use，may be damaged if（）.
Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.
Daylight savings time is a form of zone time that adopts the time（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Deneb is found in what constellation?（）
Complete information on weather broadcasts throughout the world is contained in（）.