相关试题
单选题 InRTF communication, the number 34900 is transmitted as ( ).
单选题 The term "roger" means ( ).
单选题 Prior to starting transmission a pilot or controller should ( ).
单选题 The phrase "go ahead" means ( ).
单选题 The abbreviated callsign of TWA NGPED is ( ).
单选题 In RTF communication, the aircraft callsign 9099X is spoken is ( ).
单选题 The primary reason for using standard phraseology is to ( ).
单选题 A radio transmitter is activated when the ( ).