單項(xiàng)選擇題

Pilot ladder is（）on port side.

A.equipped
B.rigged
C.put on
D.put off

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單項(xiàng)選擇題

Pitching is angular motion of the vessel about what axis?（）.

A.Longitudinal
B.Transverse
C.Vertical
D.Centerline

單項(xiàng)選擇題

Radio beacon service of John Light（）discontinued.

A.has been
B.have been
C.have
D.has