A、vessel laying cable
B、vessel towing a submerged object
C、vessel not under command
D、air cushion vessel
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A、vessel laying cable
B、vessel towing a submerged object
C、vessel not under command
D、air cushion vessel
时间：2022-01-10 18:26 关键词： 固体散装危险品与BC规则 水路交通运输技能考试 海船船员考试