题目内容

词汇与结构Each channel controls the pitch and roll axes and provides mach __ and speed control.

A. form
B. drain
C. trim
D. dim

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词汇与结构When dual channel option is provided, channels A and B can be engaged ________ when making fail-passive automatic landings.

A. simultaneously
B. continuously
C. courageously
D. temporarily

词汇与结构As the airplane enters the Mach tuck region, the elevator is ________ to provide a new neutral in an upward direction which is proportional to the increase in Mach.

A. reduced
B. removed
C. repositioned
D. replaced

词汇与结构The speed trim system actuates the stabilizer trim to maintain ________ speed control.

A. massive
B. positive
C. negative
D. active

词汇与结构The Mach Trim System operates in ________ with the elevator hydraulic power control units and stabilizer/elevator neutral shift mechanism.

A. connection
B. conjunction
C. construction
D. reflection