The distribution system has these functions.

A. 当表示章/系统的数字后面是0，即表示章节/子系统和维修项目/组件的数字有0，这部分就是适用于整个系统的。

B. 当表示章/系统的数字后面是0，即表示节/子系统和维修项目/组件的数字是0，这部分就是适用于整个系统的。

C. 当表示章/系统的数字后面是0，即表示章/子系统或维修项目/组件的数字是0，这部分就是适用于整个系统的。

A. 描述飞机电源系统时，应说明线束保护功能。

B. 描述飞机电源系统时，应提供线路保护的描述。

C. 描述飞机电源系统时，应说明回路保护。

A. With the aid of the component manufacturer, all components in this chapter can be overhauled in any workshops with different qualifications.

B. Without the data supplied by the component manufacturer, it is possible for the most qualified shop to overhaul any components included in this chapter.

C. You must overhaul any or all components in this chapter in an eligible shop on the basis of data provided by the component manufacturer.

A. 拧松螺钉，但同时不要给它们打力矩。

B. 拧紧螺栓，但此时不要扭矩它们。

C. 拧紧螺母，但此时不要给它们打力矩。

A. 臭氧转换器通过臭氧对膜材料进行氧化，从而防止空气分离模块受损。

B. 臭氧转换器防止臭氧对膜材料进行氧化，从而避免空气分离模块受损。

C. 臭氧转换器防止空气分离模块受损，以使得臭氧对膜材料进行氧化。

A. 如果可能的话，告诉你的读者如果不遵守安全指令会发生什么。

B. 如果必要的话，告诉你的读者如果没有安全指令会发生什么。

C. 如果可能的话，告诉你的读者会发生什么，判断是否未遵守安全指令。

A. Ground Idle Power refers to the power required to run an engine on the ground, as slowly as possible, yet sufficient to ensure satisfactory engine, engine accessory, and airplane operation with a minimum of thrust.

B. Ground Idle Power refers to the power required to run an engine as slowly as appropriate on the ground while still ensuring satisfactory airplane operation with a maximum of thrust of engine and engine accessory.

C. For Ground Idle Power, it determines the minimum power necessary to initiate and maintain safe airplane operation, engine accessory function, and satisfactory engine performance while limiting the degree of thrust utilized.

A. “数据传输”或“自动呼叫”系统，如选择呼叫，利用脉冲编码的传输来呈现信息.

B. “数据传输”或“自动呼叫”系统，如选择呼叫，用脉冲被编码的传输来呈现信息.

C. 在“数据传输”或“自动呼叫”系统中，如选择呼叫，信息的传递是通过用脉冲被编码实现的。

A. These tests should only use the equipment or facilities installed on the aircraft. These tests should be able to perform by the flight crews.

B. These tests should not use the special equipment or facilities that are not installed on the aircraft. These tests should be similar to the tests performed by the flight crews.

C. These tests should require the equipment or facilities installed on the aircraft rather than the special ones and should be replaceable by the tests accomplished by the flight crews.

A. 风扇和增压器是一个四级压气机。

B. 增压器是一个四级压气机风扇。

C. 风扇是一个四级增压器的压气机。