A.the Canadian Coast Guard
B.Ice Sarnia
C.the Ice Navigation Center
D.the icebreaker assigned to the area
您可能感興趣的試卷
你可能感興趣的試題
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
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Conventional anchors are least likely to hold in a bottom consisting of（）.
Chronometer error may be found by（）.
Consideration should be given in planning for the mooring orientation in a new location so that in adverse weather a crane is available to off-load the supply vessel on what side of the unit?（）
Dacron sails，when not in use，may be damaged if（）.
Cumulonimbus clouds are formed by（）.
Cumulus clouds that have undergone vertical development and have become cumulonimbus in form，indicate（）.
Class I and II private aids to navigation in or along navigable waters of the United States are listed in the（）.
Complete information on weather broadcasts throughout the world is contained in（）.