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
Conventional anchors are least likely to hold in a bottom consisting of（）.
Chart legends printed in capital letters show that the associated landmark is（）.
Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
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（）.
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Corrosive liquids and acids should have which kind of label?（）
Changing rescuers while carrying out artificial respiration should be done（）.
Cyclones that have warm sectors usually move（）.
Deck beams on a ship are generally spaced at equal intervals and run（）.
Deneb is found in what constellation?（）