Do not point the compressed air outlet at your skin.

A. The form of the climb performance presentation is decided by the airplane manufacturer.

B. The format of the cruise performance presentation is at the discretion of the airplane manufacturer.

C. The form of the cruise performance presentation is at the discretion of the airplane manufacturer.

A. As the depressurization of the alternate system, the hydraulic system A must be released to open the rudder hydraulic system selector valve and permit hydraulic fluid to flow to the rudder actuator below.

B. In order to depressurize standby system, the hydraulic system A must be depressurized to open the rudder hydraulic system selector valve and let hydraulic fluid flow to the lower rudder actuator.

C. Due to the depressurization of the alternate system, the hydraulic system A must be released to open the rudder hydraulic system selector valve and permit hydraulic fluid to flow to the bottom rudder actuator.

A. The approved repair part must contain the skill and technology required to carry up the repair.

B. The approved repair portion shall include processes and techniques necessary for performing a repair .

C. The necessary workmanship and skills constitute the approval of the repair portion.

A. Do this procedure again.

B. Repeat this procedure.

C. Do this procedure two times.

A. Record the results if the frequency changes.

B. Alter the phase and record the results.

C. Change the frequency and record the results.

A. 液压系统的主要压力用于飞行控制系统。

B. 飞行控制运行所需的压力来源于起主要作用的液压系统。

C. 液压系统的主要功能是为飞行控制系统的操作提供压力。

A. 如果飞机有一个内置的辅助动力装置，描述该装置并解释它是如何配合电气系统工作的.

B. 如果飞机有一个附加的辅助电源组件，描述该装置并解释它是如何对接电气系统的.

C. 如果飞机有一个内置的辅助动力装置，描述该装置并解释它是如何装配到电气系统的.

A. A mixture of fuel and oxygen can cause an explosion.

B. Fuel and oxygen react with each other to cause explosion.

C. A mixture of fluid and oxygen can be set on fire.

A. 对改变飞机重量或平衡有显著效果的设备不需要列出。

B. 对飞机重量或平衡无显著影响的设备无须包含在此清单中。

C. 对飞机重量或平衡没有显著影响的设备需要列出。

A. 由于尺寸、设计或器材的变化，需要对绘图进行修改。当绘图上有这样的修改时，要注意对字母和数字进行的修改，并在修改栏的符号上列出这些修改。

B. 由于尺寸、设计或材料的变化，需要对图纸进行修改。当图纸上有这样的修改时，要注意用字母或编号标出这些修改，并在修改栏里对照符号列出这些修改。

C. 由于尺寸、设计或材料的变化，需要对图纸进行修改。当图纸上有这样的修改时，要注意对字母和数字进行的修改，并在修改栏的符号上列出这些修改。