Each lifeboat shall be launched with its assigned operating crew aboard and manoeuvered in the water at least ____during an abandon ship drill. A. once every month B. once every two months C. once every three months D. once every six months

多选题

Each permit shall, at least, contain( ).

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单选题

Each lifeboat shall be launched with its assigned operating crew aboard and manoeuvered in the water at least ____during an abandon ship drill.A. once every monthB. once every two monthsC. once every three months D. once every six months

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单选题

EPIRB shall generally be installed（被安置） ____.A. on deck B. in wheel houseC. in lifeboat D. near wheel house（驾驶台附近）

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单选题

Each item of Airplane Performance shall include a statement of significant conditions associated with the data.

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单选题

The lifeboat sliall be so constructed that it shall be capable of maintaining ___when open to the sea. A. positive stability B. negative stabilityC. neutral stability D. zero stability

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