单项选择题
Aboard ship，vertical flat plates running transversely and connecting the vertical keel to the margin plates are called（）.
A.floors
B.intercostals
C.girders
D.stringers
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单项选择题
A vessel having continuous closely spaced transverse strength members is（）.
A.longitudinally framed
B.transversely framed
C.cellular framed
D.web framed -
单项选择题
A term applied to the bottom shell plating in a double-bottom ship is（）.
A.bottom floor
B.outer bottom
C.shear plating
D.tank top -
单项选择题
A simplified construction plan may be included in the ship construction portfolio provided it adequately defines the（）.
A.areas where special materials are used
B.hazardous areas
C.location of emergency repair equipment
D.type and strength of materials used
