A.the Canadian Coast Guard
B.Ice Sarnia
C.the Ice Navigation Center
D.the icebreaker assigned to the area
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A.coiling
B.faking
C.flemishing
D.thoroughfooting
A.pilot charts
B.Notices to Mariners
C.Tide Tables
D.Current Tables
A.are sheet or layer clouds
B.have undergone great vertical development
C.are middle or high altitude clouds
D.are rain clouds
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
A.high pressure fluid accumulators
B.driving air-powered plunger pumps
C.filling open-circuit breathing systems
D.bladder-type accumulators
最新試題
Dacron sails，when not in use，may be damaged if（）.
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.
Complete information on weather broadcasts throughout the world is contained in（）.
Chronometer error may be found by（）.
Daylight savings time is a form of zone time that adopts the time（）.
Conventional anchors are least likely to hold in a bottom consisting of（）.
Chart legends printed in capital letters show that the associated landmark is（）.
Day-shapes must be displayed（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）