37.A distressed vessel should transmit distress ___________ to a RCC as soon as possible.
(A)alert
(B)call
(C)warning
(D)notice
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統計: A(5), B(6), C(6), D(3), E(0) #2401823
統計: A(5), B(6), C(6), D(3), E(0) #2401823