题目内容

词汇与结构A localizer (LOC) antenna array is normally ______ beyond the departure end of the runway and generally consists of several pairs of directional antennas.

A. adjusted
B. supported
C. located
D. equipped

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词汇与结构A localizer (LOC) antenna array generally consists of several pairs of ____ antennas.

A. precision
B. directional
C. non-directional
D. non-precision

词汇与结构Each ILS antenna ____ a narrow beam, one slightly to the left of the runway centerline, the other to the right.

A. transmits
B. sends
C. transfers
D. delivers

词汇与结构A glideslope or glidepath (GP) antenna array is sited to one side of the runway ____ zone.

A. threshold
B. touchdown
C. stopway
D. stopend

词汇与结构The ____ of the glideslope signal is arranged to define a glideslope of approximately 3° above ground level.

A. centerline
B. front
C. back
D. sideline