Deck : Safety - 136/2841
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| In radiotelephone communications, the prefix PAN-PAN indicates that __________. |
| A) the message following is a meteorological warning |
| B) a calling station has an urgent message about the safety of a person |
| C) a ship is threatened by grave and imminent danger and requests immediate assistance |
| D) the message following the prefix will be about the safety of navigation |
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