Floors aboard ship are（）.<br>A:also called decks<br>B:vertical transverse plates connecting the vertical keel with the margin plates<br>C:large beams fitted in various parts of the vessel for additional strength<br>D:found in passenger and berthing spaces only

Floors aboard ship are（）.
A:also called decks
B:vertical transverse plates connecting the vertical keel with the margin plates
C:large beams fitted in various parts of the vessel for additional strength
D:found in passenger and berthing spaces only

出自：海船船员证

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