找出损伤类型和尺寸。

A. If the failure takes place occasionally, the system need to be tested.

B. If there is a failure that seldom take place, do a system test.

C. If the failure occurs frequently, do a system test.

A. 在编制维护手册的索引编号时，制造商可能会省略与该产品无关的系统/章节，或者在可行的情况下合并系统/章节。

B. 在查询维修手册时，制造商可以删去不适用其产品的系统/章，或者在可行的情况下把几个系统或章合并起来。

C. 在查询维修手册时，使用人你可以跳过不适用其产品的系统/章，或者在可行的情况下把几个系统或章合并起来。

A. 戴上氧气面罩并进行呼吸，确认其供氧正常。

B. 在佩戴氧气面罩前进行深呼吸，确认血液中氧气充足。

C. 为确保供氧正常，请不要摘下氧气面罩并进行呼吸。

A. 检查和观察是用于检查飞机内部和周围的舱室和设备的窗口，包括透明材料、框架等。

B. 检查窗和观察窗是用于检查飞机内部和飞机上的舱室和设备的窗口，包括透明材料、框架等。

C. 检查和观察是用于检查飞机内部和周围的舱室和设备的窗口，包括透明材料、其框架等项目。

A. 操作部件两个循环，从管道排除空气，拆下组件。

B. 操作部件两个循环，排除管道中的空气。

C. 操作部件使空气两次循环，从管子上拆下。

A. Charge the battery.

B. Discharge the battery.

C. Inflate the battery.

A. Prior to and aft use the tool / equipment, the user shall make a visual check or operational test to confirm the utility.

B. Before or after using the tool / equipment, the user shall make a visual check or functional test to confirm the serviceability.

C. Before or aft of using the tool / equipment, the user shall make a spot check or functional test to inform the usability.

A. 这种调整的精度很重要。

B. 这种调整的范围很重要。

C. 这种测试的精度很重要。

A. 试验结果表明，需要实施故障识别程序。

B. 如果测试没有给出满意的结果，执行故障隔离程序。

C. 如果测试结果不满足，启动故障探测程序。

A. You can find electronic devices in nearly all aircraft systems. They are system control and monitoring computer, the control inputs and indications in the cockpit and sensors throughout the whole aircraft.

B. The computer used for system control and monitoring and the control inputs and indications in the cockpit and sensors all over the whole aircraft are the electronic devices used in almost all aircraft systems.

C. Electronic devices can be found in nearly all aircraft systems that are computer for system control and monitoring in the cockpit and sensors all over the whole aircraft.