• 2022-06-05
    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
  • B

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    • 0

      In the tower, there are many air traffic controllers helping take-off and landing of the _________. A:

    • 1

      “空中交通管制”可以表达为"_____". A: air traffic warning B: air traffic control C: traffic control D: air traffic clearance

    • 2

      People _____ in air traffic control may monitor aircraft movement in control tower. A: involved B: resolved C: resolving D: involving

    • 3

      Air traffic control provides traffic ______ services to the aircraft on a time permitting basis.

    • 4

      It is very common for air traffic controllers to vector aircraft to the final approach ____, e.g. the ILS. A: guide B: means C: control D: aid