Make sure that you turn the control knob counterclockwise.

A. 手册子章节里的材料可以抄袭本规范本节各小段中的材料顺序，也可以根据特定类型或型号的飞机进行排布。

B. 手册各小段中的材料可以遵循本规范本节各小段中的材料顺序，也可以安排特定类型或型号的飞机进行匹配。

C. 手册各小段中的材料可以遵循本规范本节各小段中的材料顺序，也可以根据特定类型或型号的飞机进行排布。

A. This system does not include the usual channels of communication available to CAP.

B. This system does not supersede the normal channels of communication for items not covered by the CAP.

C. The usual channels of communication in this system cannot be replaced by the introduction of CAP.

A. In some cases, for complex aircraft, special training should be conducted so that the aircraft and its systems can be maintained properly.

B. Sometimes, especially for complex airplanes, it may be necessary to provide specific training in the proper maintenance of the airplane and its systems.

C. Sometimes, for particularly complex airplanes, it is required to provide special training so as to perform proper maintenance of the aircraft and its systems.

A. These tests need no special equipment or facilities except those installed on the aircraft, and are like the tests performed by flight crews.

B. These tests need some special equipment or facilities that are not installed on the aircraft. And these tests are the same to the tests performed by flight crews.

C. These tests need special equipment or facilities that are installed on the aircraft, and are identical with the tests performed by flight crews.

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. 对于1985年1月1日之后认证的飞机，无论认证基础如何，50英尺障碍物处的速度不得低于相同飞机构型发动机关断下失速速度的20%。

B. 对于1985年1月1日之后审定合格的飞机，无论审定基础如何，达到越障高度50英尺时的速度不得低于相同构型下无动力失速速度的1.2倍。

C. 对于1985年1月1日之后审定合格的飞机，无论审定基础如何，达到越障高度50英尺时的速度不得低于相同构型下无动力失速速度的1.2倍。

A. 你可以在检查完成后操作车辆。

B. 测试完成后可以操作机器。

C. 检查完成后可以停止车辆。

A. Mixed category consists of many parts and components, five kinds of these parts have been selected.

B. Miscellaneous category consists of many parts and components, five kinds of these parts have been selected.

C. Complicated category consists of many parts and components, five kinds of these parts have been selected.

A. 确保维修飞机时不要撞到勤务箱。

B. 确保勤务车不要撞到飞机。

C. 确保勤务柜不要放在飞机的旁边。

A. 限制提供飞机系统或设备的提供，例如，限制防冰系统的加热元件或电池温度。

B. 应对飞行设备，特别是防冰系统的加热元件，以及电池的温度进行限制。

C. 应提供所有飞机系统或设备的限制信息。例如，与防冰系统或电瓶温控系统中所用的电加热元件相关的限制信息。