单选题The floors in a vessel’s hull structure are kept from tripping，or folding over，by（）.Aface platesBbottom longitudinalsClongitudinal deck beamsDtransverse deck beams
单选题
The floors in a vessel’s hull structure are kept from tripping，or folding over，by（）.
A
face plates
B
bottom longitudinals
C
longitudinal deck beams
D
transverse deck beams
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