A、 Use back thrust to change the director of the exhaust to achieve contrary thrust.
B、 Thrust reverser is used to change the direction to the exhaust gases for reverse thrust.
C、 To change the direction of the exhaust nozzle, the thrust reverser is used to obtain the opposite thrust.
答案：B
A、 Use back thrust to change the director of the exhaust to achieve contrary thrust.
B、 Thrust reverser is used to change the direction to the exhaust gases for reverse thrust.
C、 To change the direction of the exhaust nozzle, the thrust reverser is used to obtain the opposite thrust.
答案：B
A. The shim is t, which is thick by calculating x and y.
B. Calculate the shim, the result of the thickness is x-y.
C. The thickness of the shim is thus calculated: t=x-y.
A. 进口导向叶片的开和关用来调节进入到APU负载压气机部分的空气量。
B. 进口导向活门的开和关用来调节进入到APU负载压气机部分的空气量
C. 进口导向叶片的开和关用来控制进入到APU压气机部分的空气负载量。
A. There are trim tabs at the rear of both ailerons.
B. There are trim tabs at the rear of both flaps.
C. There are trimmable stabilizers at the rear of both elevators.
A. For vocabulary, only main alternation are highlighted, minor alternations to many approved and not approved examples are not highlighted.
B. For wordlist, only major changes are highlighted, minor changes to various approved and not approved examples are not highlighted.
C. For vocabulary, only main alternation are prominent, minor alternations to many approved and not approved examples are not prominent.
A. ADHERE
B. FOLLOW
C. OBEY
A. As a part of the emergency light system, the left dome light contains of a built-in single lamp.
B. The left dome light consists a separate lamp which is a part of the emergency light system.
C. A single lamp which is part of the emergency light system is built in the left dome light.
A. These must be shown on the wiring diagram under some specific conditions and wires are color coded.
B. Wires are coded in color in certain condition, and these should be marked on the wiring diagram.
C. In some cases, wires are color coded, and these should be indicated on the wiring diagram.
A. Documents shall be easy to revise
B. Documents must be ready to revise
C. Documents shall be ready to change
A. 在充气活门上的防尘螺帽被拆下来了,这样新鲜的空气源才能被连接到气门杆和螺套上,以打开充气阀门。
B. 在充气阀门上的可调节螺帽被拆除了,这样新鲜的空气源才能被连接到气门杆和螺套上,以打开充气阀门。
C. 充气阀门上的防尘帽被拆除,外接气源连接到阀门杆,旋转螺母被旋开以打开充气阀门。
A. Atmospheric pressure increasing with decreases altitude;
B. Atmospheric pressure decreases with increasing altitude;
C. Atmospheric pressure decreases with increasing attitude;
