A vessel’s Certificate of Documentation （）.<br>A:may be retained by the owner at the home port or kept on the vessel<br>B:must be posted under transparent material in the pilothouse<br>C:must be carried on board<br>D:must be kept on file at the corporate offices of the owner or operator

A vessel’s Certificate of Documentation （）.
A:may be retained by the owner at the home port or kept on the vessel
B:must be posted under transparent material in the pilothouse
C:must be carried on board
D:must be kept on file at the corporate offices of the owner or operator

出自：海船船员证

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