题目内容

At intervals of not more than ______ the lifeboat shall either be launched by free fall with only the operating crew on board, or simulated launching shall be carried out in accordance with the guidelines developed by the Organization

A. 1 month
B. 3 months
C. 6 months
D. 12 months

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bulk cargo____

displacement tonnage ____

deadweight tonnage ____

registered tonnage ____

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