Air traffic control is in charge of passenger boarding and exiting aircraft.
举一反三
- Air traffic control provides traffic ______ services to the aircraft on a time permitting basis.
- People _____ in air traffic control may monitor aircraft movement in control tower.
- From the control tower, air traffic controllers coordinate aircraft movement both _____________ and on the ground.
- 中国大学MOOC: How to inform the passenger of the delay in case of air traffic control?
- 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