Be careful when you cut lockwire. It can cause injury to your eyes.

A. The complexity and stringency of this test or check are different from the operation conditions of the unit.

B. The test or check will change in complexity and stringency no matter what the conditions under which the unit operates.

C. Such tests or checks will vary in complexity and stringency according to the conditions under which the unit functions.

A. Indicating is that portion of the system which is used to indicate temperature, pressure, control positions, etc. of the air systems. Includes items such as transmitters, indicators, etc.

B. Indicators are systems used to display air temperature, pressure, control position, etc. It includes switches, thermometers and other components.

C. Indication system is used to indicate atmospheric temperature, pressure, control position, etc. It includes crossfeeding system, thermometer and other components.

A. If the right engine stops, what position will APU servo valve stop at?

B. If the right engine is not running,what position will APU bleed valve stop at?

C. If the right engine stops, will APU servo valve stop at close position?

A. The steel plate measures 1.5 metres long and 3/8 centimeter thick.

B. The steel plate measures 1.5 metres long and 3/8 decimeter thick.

C. The aluminum plate measures 1.5 metres long and 3/8 decimeter thick.

A. 确保放置正确尺寸的部件。

B. 确保更换的部件尺寸正确。

C. 确保更换的部件位置正确。

A. 封面上的信息将由制造商自行决定。

B. 封面包含的信息将由制造商保留。

C. 封面必须包含制造商保留的信息。

A. Smooth the cargo-compartment door levers.

B. Polish the cargo-compartment door wheels.

C. Lubricate the cargo-compartment door handles.

A. 应说明燃油的总量和可用燃油量，如果燃油可用量超过FAR 23部的限制，还应说明原因。

B. 应说明油箱容量和可用燃油量，如果不可用燃油量超过FAR 23部规章的限制，还应提供用于确定飞行中不可用燃油量的相关信息。

C. 燃油的总容量如果超出了FAR 23部的规定，还应确定飞行中不可用燃油的数量。

A. 应当提供在客舱内或发动机冒烟或起火的情况的处理程序。

B. 应对机舱内或发动机的烟雾报警有特定的处理说明。

C. 手册中专门描述了如何应对飞机起火或冒烟的紧急情况的处理措施。

A. 加入溶剂使油漆变得更稀薄。

B. 加入溶剂使油漆变得更稳定。

C. 在油漆里加入更多溶液。