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Battens are fitted in cargo holds across the frames of the vessel from the turn of the bilge upward. The purpose of these cargo battens is（）.
A:for securing a snatch block when snaking cargo into the wings of the hold
B:to prevent cargo from coming in contact with the vessel's frames or shell plating
C:to provide fittings to which cargo lashings may be secured
D:to support the dunnage floors which are laid down between tiers of cargo

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出自：海船船员证

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