单项选择题
Stanchions prevent the entire deck load on a ship from being carried by the（）.
A.bulkheads
B.stringers
C.frames and beam brackets
D.deck longitudinals
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A.at a lower level than the baseline
B.on the longitudinal centerline
C.higher than the center of gravity
D.at amidships -
单项选择题
Ship’s officers should check every cargo compartment after it is filled with bulk grain to ensure（）.
A.all lighting circuits are energized
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单项选择题
Reinforcing frames attached to a bulkhead on a vessel are called（）.
A.side longitudinals
B.intercostals
C.stiffeners
D.brackets
