题目内容

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

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

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词汇与结构The electrical system is also ____ with an essential transformer rectifier.

A. fitted
B. fixed
C. matched
D. covered

词汇与结构If electrical power is absolutely essential for the flight, an attempt may be made to identify and isolate the ______ circuit.

A. faulty
B. unstable
C. right
D. specified

词汇与结构The function of the electrical system on a large transport aircraft is to generate, regulate, and distribute ________ power throughout the aircraft.

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

词汇与结构Electrical power is used to _______aircraft flight instruments, essential systems, and passenger services.

A. operate
B. carry
C. drive
D. host

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