题目内容

This is becoming increasingly popular with "____" airlines and most manufacturers of regional jets are now offering HUDs as either standard or optional equipment.

A. trunk
B. feeder
C. branch
D. small

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A____ Display allows the flight crew to fly the aircraft using the guidance cues from the ILS sensors.

A. Forward
B. Head-Up
C. Eyes-Out
D. Overhead

For both automatic and HUD landing systems, the equipment requires special approval for its design and also for each individual ____.

A. setup
B. assembly
C. mounting
D. installation

Radars are always used by ATC units to provide ______ to IFR flights.

A. direction
B. guidance
C. vectors
D. assistance

Controllers will _______ an altitude to pilots in the approach clearance in most cases.

A. assign
B. allot
C. agree
D. approve