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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In heavy weather you notice buckling in the midships deck plating of your vessel. To relieve the strain you could（）.
The deck loads on a ship are distributed through the deck beams to the（）.
The pillar shape that gives the greatest strength for the least weight is the（）.
Structural stress levels in a ship are the sum of loading stresses and stresses due to（）.
The purpose of sheer in ship construction is to（）.
If the weights are moved away from the midship section，（）will happen on board.
The decks of a ship are supported by transverse members called（）.
The procedure of strengthening damaged structures on a ship by using wood or steel is called（）.
The central longitudinal structural hull strength member of the lower hulls of semisubmersible ship’s is called the（）.
The deck beam brackets of a transversely framed vessel resist（）.