单项选择题

The terms ceiling and margin plate are associated with the（）.

A.crew's quarters
B.engine room
C.main deck
D.tank top

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单项选择题

The stevedores have already stowed the porcelain ware（）up to the deckhead.

A.loosely
B.closely
C.heavily
D.strongly

单项选择题

The process of lowering a boom to a horizontal position and onto its deck support is called（）.

A.spotting a boom
B.collaring a boom
C.cradling a boom
D.toppling a boom

单项选择题

The minimum length of a boat painter for a lifeboat in ocean service is（）.

A.60 fathoms
B.the distance from the main deck to the light waterline
C.twice the distance from the main deck to the light waterline or 50 feet whichever is greater
D.two times the distance from the boat deck to the light waterline or 50 feet whichever is greater