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
Corrosive liquids and acids should have which kind of label?（）
Deneb is found in what constellation?（）
Cumulus clouds that have undergone vertical development and have become cumulonimbus in form，indicate（）.
Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
Chronometer error may be found by（）.
Conventional anchors are least likely to hold in a bottom consisting of（）.
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
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?（）
Class I and II private aids to navigation in or along navigable waters of the United States are listed in the（）.
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（）.