Aboard ship，vertical flat plates running transversely and connecting the vertical keel to the margin plates are called（）.<br>A:floors<br>B:intercostals<br>C:girders<br>D:stringers

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

出自：海船船员证

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