A: control
B: position
C: instruct
D: monitor
举一反三
- Flow restrictions often begin in the middle of the route, as controllers will ______ aircraft landing in the same destination so that when the aircraft are close to their destination they are sequenced.
- holding landing delay A: Due weather B: Due landing delay at destination C: Due separation D: Due flow control
- The aircraft must be placed in a flow _________ the aircraft’s route of flight.
- The aircraft must be adjustedin a flow consistent with the aircraft's route of flight.
- The aircraft must be placed in a flow _________ the aircraft’s route of flight. A: parallel to B: opposite to C: consistent with D: inconsistent with
内容
- 0
_________is a procedure used by aircraft in certain emergency situations before a return to the airport shortly after takeoff or before the landing short of its intended destination to reduce the aircraft's weight. A: fuel jettison B: refuelling C: circling D: diversion
- 1
People _____ in air traffic control may monitor aircraft movement in control tower.
- 2
请将下列段落翻译成汉语：Air traffic control (ATC) is a service provided by ground-based controllers who direct aircraft on the ground and in the air. The primary purpose of ATC systems worldwide is to separate aircraft to prevent collisions, to organize and expedite the flow of traffic, and to provide information and other support for pilots when able.
- 3
From the control tower, air traffic controllers coordinate aircraft movement both _____________ and on the ground.
- 4
词汇与结构 When aircraft are under radar control, air traffic controllers may replace some or all of these phases of the approach with radar____.