A.stronger
B.thinner
C.more corrosion resistant
D.a lower grade steel
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A.warmer，less dense，and less stable
B.cool，more dense，and drier
C.muggy and cloudy
D.extremely moist with high relative humidity
A.the Canadian Coast Guard
B.Ice Sarnia
C.the Ice Navigation Center
D.the icebreaker assigned to the area
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
最新試題
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Cumulonimbus clouds are formed by（）.
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（）.
Charts showing the coast of Mexico are produced by the United States（）.
Clouds form（）.
Chart legends printed in capital letters show that the associated landmark is（）.
Corrosive liquids and acids should have which kind of label?（）
Dacron sails，when not in use，may be damaged if（）.
Define the acronym MSI（）.