相关题目
The chief advantage of ASR procedure is that （ ） .
The airborne equipment to match NDB is （ ） .
All radar identification techniques depend on （ ） .
Airborne SSR transponder is in fact a （ ） .
The SSR, system requires the use of three additional components to the basic radar equipment, they are （ ） .
Aircraft are required to comply with ATC instructions within （ ） .
If an aircraft performs the initial part of a flight as a controlled flight, and at a later stage will continue as an uncontrolled flight, the clearance limit should normally be （ ） .
An ATC unit addressed by an urgency call should （ ） .
Should the pilot of an aircraft equipped with a transponder experience a loss of two-way radio capability, he can be expected to （ ） .
When the inbound leg of an assigned holding pattern lies on the 030 radial of VOR，which holding direction will be specified in the clearance?
