阿摩線上測驗
20. Transmit MAYDAY alert to RCC The abbreviation of “RCC” is:
(A) Research Co-ordination Center
(B) Response Co-ordination Center
(C) Recreation Co-ordination Center
(D) Rescue Co-ordination Center
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統計： A(0), B(0), C(0), D(1), E(0) #4054253
統計： A(0), B(0), C(0), D(1), E(0) #4054253
