题目内容

词汇与结构Power for passenger services is provided to ________ the cabin, to operate the entertainment system, and to prepare food.

A. warm
B. light
C. cool
D. keep

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词汇与结构The DC battery bus can _______ the batteries or receive power from the batteries, as required.

A. change
B. dump
C. charge
D. drive

词汇与结构The N1 and N2 rotors are _______ independent。

A. mechanically
B. electrically
C. manually
D. technically

词汇与结构The main engine control _____ fuel to provide the thrust called for by the forward thrust lever setting.

A. delays
B. schedules
C. changes
D. selects

词汇与结构The fuel flow is further ______ electronically by the power management control without moving the thrust levers.

A. defined
B. declined
C. refined
D. reclined