A.between sunset and sunrise
B.only between 8 AM and 4 PM
C.during daylight hours in any visibility
D.during daylight hours in unrestricted visibility only
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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.left in the sunlight
B.stowed wet
C.washed with soap
D.folded frequently
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.clearing weather
B.that a warm front has passed
C.probable thunderstorm activity
D.an approaching hurricane or typhoon
A.vertical air movements
B.heavy rainstorms
C.horizontal air movements
D.any movement of moist air
最新試題
Chronometer error may be found by（）.
Cumulus clouds that have undergone vertical development and have become cumulonimbus in form，indicate（）.
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（）.
Cyclones that have warm sectors usually move（）.
Dacron sails，when not in use，may be damaged if（）.
Chart legends which indicate a conspicuous landmark are printed in（）.
Concerning a celestial observation，the azimuth angle is measured from the principal vertical circle to the（）.
Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
Charts showing the coast of Mexico are produced by the United States（）.
Changing rescuers while carrying out artificial respiration should be done（）.