单项选择题

The deck beam brackets of a transversely framed vessel resist（）.

A.hogging stresses
B.sagging stresses
C.racking stresses
D.shearing stresses

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单项选择题
The central longitudinal structural hull strength member of the lower hulls of semisubmersible ship’s is called the（）.

A.stress plate
B.keel
C.rider plate
D.main beam
单项选择题
Support of ship side plating is provided primarily by transverse（）.

A.beams
B.girders
C.frames
D.bulkheads
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