Do these steps to replace the light assembly.

A. 包含大写字母加名词或数字加名词的术语，通常用于描述某物的形状或结构。

B. 包含大写字母加名词或数字加名词的条款，通常用于描述某事的形式或特性。

C. 项目首字母加名词或者数字加名词的，通常要描述某物的外形和构造。

A. 从计算机的前部断开钢索。

B. 从计算机的前部边缘安装数据线。

C. 从计算机的后部安装电缆。

A. 控制水平安定面/前置平尾位置和移动的系统部分。

B. 控制垂直安定面/鸭翼位置和移动的系统部分。

C. 控制水平/前翼位置和移动的系统部分。

A. The units used by pilots are the most valuable.

B. The units used are those which are the most expensive for pilots.

C. The units are the most useful for the pilots.

A. Put the bell crank and shaft with identification to prevent improper installation.

B. Identify the bell crank and shaft with marks to prevent wrong installation.

C. Put the bell crank and shaft with identification to prevent wrong installation.

A. 因为轴的损坏，导致泵不运转。

B. 由于泵的设计问题，导致其停止运转。

C. 泵运转失常的原因在于叶轮的损坏。

A. Use protective goggles when you do work on fire extinguishers.

B. Ensure that you wear protective clothes while performing tasks on fire extinguishers.

C. Use protective gloves when working on fire extinguishers

A. Generally speaking, there are separate arrangements and chapter breakdown in each manual, full unification is difficult to achieve.

B. In general, it is mandatory for all manuals to be uniform and follow chapter arrangements and breakdown to the maximum extent.

C. In general, it is desired that the following chapter arrangements and breakdown be followed uniformly and to the maximum extent practicable in all manuals.

A. Do not perform any work to the aircraft during maintenance.

B. It is forbidden to refuel the aircraft during maintenance.

C. You can add fuel to the aircraft at any time.

A. System test is normally used at minor maintenance time.

B. System test is usually done during maintenance and repairs.

C. System test is normally used at major maintenance periods.