题目内容

词汇与结构The APU is used to provide electrical power and bleed air on the ground or ______ a certain altitude in the air.

A. below
B. over
C. on
D. under

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词汇与结构If there is an engine failure in flight, APU can be started within the _______ limit.

A. altitude
B. attitude
C. height
D. speed

词汇与结构Fuel flow is measured after the MEC fuel shutoff valve and is displayed on the ______ instrument panel.

A. center
B. middle
C. front
D. back

词汇与结构If the thrust lever is repositioned, the PMC maintains the setting______to the new thrust lever angle.

A. corresponding
B. answering
C. replying
D. loading

词汇与结构he PMC includes failure detection and annunciation modules which detect PMC failures and provide a signal to the crew. The PMC INOP light, the ENG system annunciator, and the MASTER CAUTION lights ________.

A. raise
B. illuminate
C. illustrate
D. idle