单项选择题
The deck plating on a ship is supported primarily by deck longitudinals and deck（）.
A.girders B.stanchions C.frames D.beams
单项选择题 The deck loads on a ship are distributed through the deck beams to the（）.
单项选择题 The deck beam brackets of a transversely framed vessel resist（）.
单项选择题 The central longitudinal structural hull strength member of the lower hulls of semisubmersible ship’s is called the（）.
