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單項(xiàng)選擇題

Concerning a celestial observation，the azimuth angle is measured from the principal vertical circle to the（）.

A.Greenwich celestial meridian
B.hour circle of the body
C.local celestial meridian
D.vertical circle of the body

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單項(xiàng)選擇題

Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.

A.Ballast Control Operator
B.Barge Supervisor
C.Master or Offshore Installation Manager
D.operators representative

單項(xiàng)選擇題

Complete information on weather broadcasts throughout the world is contained in（）.

A.Selected Worldwide Marine Weather Broadcasts
B.your local newspaper
C.the Notice to Mariners
D.the daily weather map

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