A.trim by the stern
B.trim by the head
C.be on an even keel
D.be tender
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A.Corner fittings
B.Framework，primarily the corner posts
C.Framework and siding acting as a girder
D.Aluminum side and end panels
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If the weights are concentrated in the middle part，then（）will happen on board the ship.
Deck beams on a vessel are generally spaced at equal intervals and run（）.
Floors aboard ship are（）.
Vertical structural members attached to the floors that add strength to the floors are called（）.
To shore up the main deck for the stowage of deck cargo means to（）.
Structural stress on a ship can be reduced by（）.
Floors aboard ship are（）.
Vertical partitions which provide strength and compartmentalization on a ship are called（）.
The garboard strake is the（）.
The result of two forces acting in opposite directions and along parallel lines，is an example of what type of stress?（）