. The official number of a documented vessel is ()___.
A、Notrequiredtobemarkedanywhereonthevessel
B、Requiredtobepermanentlymarkedonthevessel'sstructure
C、Requiredtobepaintedonthevessel'sstem
D、Requiredtobepaintedonthevessel'sbow
发布时间：2024-12-03 15:18:20
