A.Greenwich celestial meridian
B.hour circle of the body
C.local celestial meridian
D.vertical circle of the body
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A.Ballast Control Operator
B.Barge Supervisor
C.Master or Offshore Installation Manager
D.operators representative
A.Selected Worldwide Marine Weather Broadcasts
B.your local newspaper
C.the Notice to Mariners
D.the daily weather map
A.stronger
B.thinner
C.more corrosion resistant
D.a lower grade steel
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
最新試題
Charts showing the coast of Mexico are produced by the United States（）.
Denebola is found in what constellation?（）
Class I and II private aids to navigation in or along navigable waters of the United States are listed in the（）.
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Clouds with the prefix “nimbo” in their name（）.
Deck beams on a ship are generally spaced at equal intervals and run（）.
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
Chronometer error may be found by（）.