答案:空
答案:空
A. 2000
B. 3000
C. 4000
D. 5000
A. burst
B. broke
C. collapsed
D. inflated
A. flap
B. spoiler
C. landing gear
D. aileron
A. CAAC
B. the local governments of the carrier
C. ministry of foreign affairs
D. air force
A. spread
B. difference
C. separation
D. distinction
A. VOR
B. DME
C. ILS
D. ADF
A. priority landing
B. foaming carpet
C. a low pass for visual check first
D. emergency landing
A. Stand by
B. Wait
C. Hold
D. Just a moment, please
A. when ATC has coordinated the clearance between all the ATS units concerned
B. when it is certain that the coordination is effective
C. when local ATC issues the first clearance
D. A and B
A. revolution speed of the low pressure rotor
B. revolution speed of the high pressure rotor
C. fuel flow rate
D. exhaust temperature