16. Which of the following options shall be chosen and the「single letter」shall be sent by
fishing vessels operating in close proximity on the fishing ground, to mean: I am hauling nets.
(A) Z
(B) P
(C) J
(D) G
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統計: A(173), B(86), C(51), D(270), E(0) #1764726
統計: A(173), B(86), C(51), D(270), E(0) #1764726