In the tower, there are many air traffic controllers helping take-off and landing of the _________.
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- satelliteautomatevaporin the air expansionhazardincorporate take control of lucrativemagneticget/be stuck inmountsignal bunchvibrateapproximatelycalculateapartcorrelate frequency From the control tower, air traffic controllers coordinate aircraft movement both ____ and on the ground.
- From the control tower, air traffic controllers coordinate aircraft movement both _____________ and on the ground.
- 4. From the control tower, air traffic controllers coordinate aircraft movement both ________ and on the ground. A: on the air B: in the air C: at the air D: of the air
- The separation of air traffic is the responsibility of air traffic controllers, utilizing the tools at their ________.
- If the airport navigation lights is not continuous supplied for use, tower controllers should opening light _____ minutes before aircraft expected to taking off or landing,or according to the required time of the tower control unit. A: 10 B: 15 C: 20 D: 25