题目内容

There are warning systems on large aircraft to show whether the landing gear is up, in _____, or down.

A. transform
B. translate
C. transit
D. transfer

查看答案

搜索结果不匹配？点我反馈

更多问题

Warning light and _____operate when any of the landing gear is not locked down and any of the engine throttles are retarded below a cruise power setting.

A. horn
B. sensor
C. monitor
D. loudspeaker

Most airliners _____warning lights and horns.

A. introduce
B. implement
C. integrate
D. incorporate

A voice message system on some aircraft may give a clear _____ warning indication.

A. verbal
B. visual
C. valid
D. video

To _____ the ambiguity of a horn or buzzer, a voice message system is used in most airliners.

A. prevent
B. abolish
C. cancel
D. eliminate