When the area is sufficiently cool, polish the surface.

A. 通过活门的流体必须是可见的。

B. 通过活门的油液必须是透明的。

C. 通过活门的流体必须是连续的。

A. Visually check the forward engine mount to the fan frame bolts if they are correctly installed and damaged.

B. Do a visual check of the bolts which attach the forward engine mount to the fan frame for the correct installation and damage.

C. Visually check the correct installation and damage of the forward engine mount to the fan frame bolts.

A. Procedures contain tasks that give instructions on how to perform them.

B. Procedures contain general instructions that show you how to do tasks.

C. Procedures contain instructions that tell you how to do a task.

A. Station shows the height along the fuselage between the reference datum and the position in inches.

B. Station is the distance of a point of fuselage to the location of reference datum along the centerline in centimeters.

C. Station means a position along the fuselage measured in inches from the reference datum.

A. 本手册包括定期发动机冷转和控制，油液系统的排放，以及静电接地等程序。

B. 本手册包括定期发动机试车、油液系统控制或排放、静电接地等程序。

C. 本手册包括发动机油液系统的测试、控制或排放，以及发动机静电接地等程序。

A. 描述飞机发动机时，应描述进气系统包括： 1.空气流动路径 2.保护结冰 3.筛选 4.增压/涡轮增压 5.限制、警告、提示

B. 描述飞机发动机时，应描述有关进气系统的以下信息： 1.气路 2.防冰 3.过滤器 4.增压/涡轮增压 5.限制、警告、提示

C. 描述飞机发动机时，应描述吸气系统包括： 1.空气流动路径 2.防冰 3.过滤 4.增压/涡轮增压 5.限制、警告、提示

A. Pilots have more opportunity to move stabilizer to nose up position during takeoff thanks to the mach trim actuator who commands elevator to a more nose down position.

B. During takeoff, pilots have more opportunity to move elevator to nose up position thanks to the mach trim actuator who commands stabilizer to a more nose down position.

C. During takeoff, pilots have more opportunity to move elevator to nose down position thanks to the mach trim actuator who commands stabilizer to a more nose up position.

A. 描述飞机电力转向系统时，如安装前轮电力转向，应包括以下相关信息： （a）系统 （b）如何使用 （c）限制讨论。

B. 描述飞机动力转向系统时，如安装前轮动力转向，应包括以下相关信息： （a）系统描述 （b）如何使用 （c）相关限制。

C. 描述飞机功率转向系统时，如果安装前轮功率转向，应包括以下相关信息： （a）应描述系统。 （b）应说明如何使用。 （c）应阐述限制。

A. Separate the first part of the sentence as the subsequent items in the lateral list.

B. Apart the first part of the sentence from the subsequent items in the horizontal list.

C. Divide the first part of the sentence from the subsequent items in the vertical list.

A. 当达到预设阈值时，烟雾探测器通过客舱内部通信数据系统触发警告。

B. 当预设的温度达到时，烟雾探测器会发出警告，通过客舱内部通信数据系统。

C. 当预设的数值达到时，客舱内部通信数据系统里的烟雾探测器会发出警告。