题目内容

词汇与结构The fans draw cabin air through____, then reintroduce the air into the conditioned air distribution system.

A. milers
B. meters
C. fillers
D. filters

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词汇与结构The flight deck receives 100% fresh conditioned air from the left pack only, and is ______ at a slightly higher pressure than the passenger cabin to prevent smoke from entering the flight deck.

A. maintained
B. reduced
C. sustained
D. returned

词汇与结构When one or more RECIRCULATION FAN switches is OFF, the EICAS memo message RECIRC FANS OFF is ________.

A. displayed
B. sparked
C. proved
D. demonstrated

词汇与结构The cabin temperature controllers regulate the temperature by controlling the addition of hot trim air to the zone supply ducts through the trim air valves to meet the ______ temperature of each of the seven temperature zones.

A. aim
B. target
C. objective
D. goal

词汇与结构The master reference temperature is increased or decreased automatically or _____ to set target temperatures for each temperature zone.

A. manually
B. annually
C. electronically
D. electrically