相关题目
Code （ ） is used after the failure of two-way radio communications．
Which of the following statement is not true?
Which of the following is not true as concerns airport surveillance radar (ASR)?
A clearance to taxi to the active runway means a pilot has been given permission to taxi （ ） ．
To identify an aircraft by turning before providing radar service, the turning angle should be greater than （ ）.
Which of the following is not a usual method to establish the radar identification?
When the controller wants to ensure the validity of the Mode C altitude readout, he may say “（ ） at 7,500”.
The controller will normally issue taxi instructions to the pilot （ ） ．
After landing, the pilot should switch to ground control （ ） ．
In the case that the missed approach is initiated by the pilot, “（ ）” shall be transmitted．
