The Oil Record Book must be maintained onboard the vessel for （）.<br>A:not less than 3 years and be readily available for inspection<br>B:6 months and then submitted to the nearest Marine Safety Office for review<br>C:an annual inspection<br>D:the duration of the ships active employment

The Oil Record Book must be maintained onboard the vessel for （）.
A:not less than 3 years and be readily available for inspection
B:6 months and then submitted to the nearest Marine Safety Office for review
C:an annual inspection
D:the duration of the ships active employment

出自：海船船员证

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