A.Pan-Pan (3 times)
B.Securite Securite Securite
C.TTT TTT TTT
D.No special prefix
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A.PAN-PAN
B.MAYDAY
C.SOS
D.SECURITY
A.TTT
B.SOS
C.The spoken word URGENCY
D.The spoken word PAN
A.MAYDAY
B.PAN-PAN
C.SECURITE
D.SOS
A.TTT
B.The spoken word PAN
C.The spoken word SECURITE
D.XXX
A.SOS
B.XXX
C.TTT
D.PAN
最新試題
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