A、southwest
B、southeast
C、northwest
D、northeast
答案：B
A、southwest
B、southeast
C、northwest
D、northeast
答案：B
A. 保持情景意识
B. 合理分工通信职责
C. 遵守无线电通信规则
D. 监听无线电并佩戴耳机
A. A type of communication system for aircraft
B. A combined VHF Omnidirectional Range (VOR) and Tactical Air Navigation (TACAN) station
C. A weather forecasting tool for airports
D. A standard instrument departure procedureb
A. 操作应答机短暂发射识别信号
B. 更改应答机编码至指定代码
C. 无需操作，等待进一步指令
D. 报告飞机识别代码
A. 不需要要求重复电报
B. 只需要要求重复全部电报
C. 只需要要求重复部分电报
D. 需要要求重复全部或部分电报
A. “STOP CPDLC REQUESTS”
B. “HOLD CPDLC TRANSMISSION”
C. “SUSPEND DATA LINK”
D. “(CALL SIGN)STOP SENDING CPDLC REQUESTS”
A. Air Defense Identification Zone, requiring prior notification for entry
B. Altitude Designated for Instrument Zone, reserved for instrument flights
C. Airspace Designated for IFR Operations, exclusive to instrument flight plans
D. Aerodrome Danger Identification Zone, surrounding airports with hazardous conditions
A. 开辟新国际航线
B. 恢复中断运行超过180天的国际航线
C. 更改现有国际航线的机型
D. 国际航线日常飞行
A. Conditions are unchanged
B. Conditions are improving
C. Conditions are deteriorating
D. Treatment is underway
A. C3
B. D3
C. E2
A. 180
B. 190
C. 200
