题目内容

词汇与结构Mechanical and hydro-mechanical flight control systems both require _________ backup to deal with failures, which again increases weight.

A. redundant
B. abandoned
C. sufficient
D. introduced

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词汇与结构Mechanical and hydro-mechanical flight control systems both have limited ability to __________ changing aerodynamic conditions.

A. interact with
B. compensate for
C. deal with
D. bring up

词汇与结构By using electrical control circuits combined with computers, designers can save weight, improve reliability, and use the computers to _________ the undesirable characteristics.

A. reinforce
B. regulate
C. mitigate
D. aggravate

词汇与结构Fly-by-wire control systems are carefully developed and validated in order to produce _________ operational effect without comprising safety.

A. maximum
B. multiple
C. minimum
D. modulated

词汇与结构If the stability surfaces (including vertical and the horizontal stabilizers) can be reduced in size, airframe weight is ________.

A. increased
B. enhanced
C. fixed
D. reduced