The backside of the title page should be left blank to avoid the need for revision and potential loss of the inserted airplane serial and registration numbers.

A. When the temperature is below zero, depressurize the water system.

B. If the temperature drops below zero, deflate the water system.

C. If the temperature decreases to less than zero, drain the water system.

A. Apply special materials in all the holes, specially in the area which can have condensation.

B. Paint special materials in all the holes, especially in the freezing area.

C. Fill special materials in all the holes, particularly for the frost area.

A. Warnings, cautions and notes may be used to highlight or emphasize important points.

B. Highlight or underline the key points with alerts, attentions and comments.

C. Alerts, cautions and comments can be used to protrude or underline the key points.

A. After wash aircraft, all 3 landing gears were found un-lubricated.

B. After aircraft wash, all 3 landing gears were found un-lubricated.

C. After aircraft clean, all 3 landing gears was found un-lubricated.

A. You can adjust the volume control.

B. You can adjust the value control.

C. You can override the voice control.

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. Clamps should be spaced at intervals not exceeding 24 inches. Clamps on wire bundles should be selected so that they have a snug fit without pinching wires.

B. Pins should be spaced at intervals not exceeding 24 inches. Pins on harness should be selected so that they have a snug fit without pinching wires.

C. Pins should be spaced at intervals not exceeding 24 inches. Pins on harness should be selected so that they have a snug fit without scratching wires.

A. 推荐的颠簸穿越速度

B. 推荐的尾流穿透速度

C. 推荐的乱流空气穿风速度

A. 所有人员必须充分了解安全预防措施。

B. 所有人员必须充分了解安全规定。

C. 所有人员必须充分了解逃生方法。

A. 反推装置是系统中引导废气产生推力的部分。

B. 反推装置是系统中改变排气方向用以向后推力的部分。

C. 反推装置能够改变排气方向进而产生反推力。