A “liner” in riveted construction of a vessel is a(n)（）.<br>A:small plate which fills the aperture between riveted strakes and the vessel framing<br>B:backing plate which is used to level the strakes while riveting，and then removed<br>C:internal frame to which the side shell is riveted<br>D:seam that is welded after riveting is completed

A “liner” in riveted construction of a vessel is a(n)（）.
A:small plate which fills the aperture between riveted strakes and the vessel framing
B:backing plate which is used to level the strakes while riveting，and then removed
C:internal frame to which the side shell is riveted
D:seam that is welded after riveting is completed

出自：海船船员证

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