Examine the opening for cracks that start at its corners.

A. Select the specific system that you will apply pressure to.

B. Select the hydraulic system that you will pressurize.

C. Identify the hydraulic system that you will bleed.

A. 如果B系统释压，液压动力传感组件系统就是一个提供备用压力到前缘襟翼和缝翼以及自动缝翼系统的液压马达泵组件。

B. 液压动力转换组件系统是一个液压马达泵组件，在系统B释压时，为前缘襟翼和缝翼以及自动缝翼系统提供备用压力。

C. 如果B系统增压，液压动力传感组件系统就是一个提供备用压力到前缘襟翼和缝翼以及自动缝翼系统的液压马达泵组件。

A. 松开按钮取消冻结模式。

B. 按下按钮取消冻结模式。

C. 按下按钮恢复冻结模式。

A. The following components are recommended for alteration. The swap of other components can be made on condition.

B. The following parts are recommended to be refurbished. Other parts can be plated according to on wing status.

C. The following parts are recommended for modification. Utilization of other parts can be by in-service experience.

A. 为避免不必要的磨损，将表面涂漆。

B. 为避免不必要的颗粒，将表面清洁。

C. 为避免不必要的摩擦，将表面抛光。

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. 在本节显著的位置应包括一个清楚的声明，内容是适航限制部分由FAA批准。

B. 当本节很显著标示出适航限制部分，这说明FAA批准了其影响。

C. 本节应在显著位置包括一份清晰的声明，说明适航限制部分的影响是FAA批准的。

A. When the required maintenance procedure is not very long and fairly simple, the above combination can be grouped under a title which is called maintenance practice.

B. When the required maintenance procedure is not lengthy and is relatively simple, a combination of the above may be grouped under one heading and called maintenance practices.

C. When the required maintenance procedures are not very long and comparatively simple, the above combinations can be bound under one subject, calling maintenance practices.

A. Propeller governor is a device that adjusts the speed of the engine or propeller by increasing or decreasing the clearance of the propeller through the clearance changing mechanism on the propeller hub.

B. Propeller governor is the device that regulates the rpm of the engine or propeller by increasing or decreasing the propeller pitch, through a pitch change mechanism in the propeller hub.

C. Propeller governor is through the propeller hub of the propeller pitch changing machine, adjusts the speed of the propeller or engine by increasing or decreasing the propeller gap.

A. “环境系统”一节应包括安全操作氧气系统时的必要信息，如系统能力和耐久性。

B. “环境系统”一节应包括安全操作氧气系统时的必要信息，如容量和持续时间。

C. “环境系统”一节应包括安全操作氧气系统时的必要信息，如使用期间的系统能力。