题目内容

词汇与结构In general, airframe vibrations can best be reduced by descending and ______ airspeed.

A. reducing
B. increasing
C. decreasing
D. adding

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词汇与结构Engine indications are _____ on the center instrument panel by the Engine Instrument System.

A. exposed
B. displayed
C. located
D. spread

词汇与结构When the round red warning light above the indicator is ________， it indicates the limit for the engine parameter displayed below it has been reached or exceeded.

A. illuminiated
B. illustrated
C. interested
D. eliminated

词汇与结构The red warning light remains ________ until the engine parameter is reduced below the limit .

A. illuminated
B. lighten
C. brighten
D. illustrated

词汇与结构The PMC is an ______system with limited authority over the MEC.

A. mechanical
B. electronic
C. electrical
D. hydraulic