52 NAVTEX is an international automated medium frequency (518 kHz) direct-printing service for
delivery of navigational and_________ warnings and forecasts, as well as urgent marine safety information to ships.
(A) stability
(B) practicable
(C) meteorological
(D) solidity
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統計: A(18), B(18), C(64), D(9), E(0) #2939504
統計: A(18), B(18), C(64), D(9), E(0) #2939504