AN APPOINTMENT BETWEEN VESSELS NORMALLY MADE ON RADIO TO MEET IN A CERTAIN AREA OR POSITION defines（）.

All casualties such as personnel injuries or illness，oil spills，accidental fire，collision，stranding，and unusually severe weather damage，whether at sea，in port，or in shipyard，must be promptly（）to the company.

A.spoken
B.said
C.told
D.communicated

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After you activate your emergency position indicating radiobeacon，you should（）.

A.turn it off for five minutes every half-hour
B.turn it off and on at five-minute intervals
C.turn it off during daylight hours
D.leave it on continuously

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