相关题目
The danger area is centered at a point of N3219E11435 with a （ ） of 30km.
According to ICAO, the VOR frequency ranges 108MHZ-118MHZ, of which the singular channels between 108MHZ and 112MHZ are for （ ） use.
When we use the AFTN, the filing time shall consist of （ ） date-time group.
The full for CPDLC is （ ） .
“Transfer of control” is transfer of （ ） for providing air traffic control service.
“ （ ） time” is the time prior to which an aircraft should be given further clearance or prior to which it should not proceed in case of radio failure.
“Landing Distance Available” is the length of runway which is declared available and suitable for the ground run of an airplane （ ） .
Great Circle Route is （ ） between two points on the earth＇s surface.
The sign “- OTR -”in the Jeppeson Chart means （ ） .
“Radar route” is a flight path or route over which an aircraft is （ ） .
