De-energize the system.

A. Make sure that there is a different distance between the holes.

B. Make sure that you space the holes equally.

C. The holes should have long distances.

A. That section of the systems which controls the position and rotation of the trailing edge flaps.

B. That portion of the systems which controls the position and movement of the trailing edge flaps.

C. That part of the systems which controls the position and rotation of the flaps.

A. In designing schematic diagrams, it may be necessary to combine two aspects: specification necessary to make the diagram clear; And the similarity essential for ease of reading and understanding.

B. In designing schematic diagrams, it may be necessary to comprehend two aspects: detection necessary to make the diagram self-contained; And the simplification essential for ease of reading and understanding.

C. In designing schematic diagrams, it may be necessary to compromise two aspects: detail necessary to make the diagram self-explanatory; And the simplicity essential for ease of reading and understanding.

A. 该数字表明了系统的规模。

B. 该图片显示了系统的结构。

C. 该形状说明了系统的形式。

A. 符合本规范会使所有飞机类型的内容和格式高度标准化，因此本规范得到联邦航空管理局认可。

B. 联邦航空管理局认识到，本规范会使所有类型的飞机(手册)内容和格式高度标准化。

C. 联邦航空管理局认可，符合本规范会使所有类型的飞机(手册)内容和格式高度标准化。

A. All aircraft engines must meet certain general efficiency, economy, and reliability requirements, which require that the ignition system can provide ignition pulses at the proper time to the spark plug in various weather and other adverse conditions.

B. All aircraft engines must meet certain overall efficiency, economy and reliability requirements, which require the ignition system should provide ignition pulses at appropriate times under meteorological and other unfavorable conditions.

C. All aircraft engines must meet certain general requirements of reliability, economic and efficiency, which dictates the use of ignition systems that deliver the firing impulse to the spark plugs in all kinds of weather and under other adverse conditions.

A. You can get the corrected velocity by dividing the aircraft velocity by the crosswind component.

B. Divide the crosswind component by the aircraft speed to get the correction.

C. Divide the aircraft speed by the crosswind component to get the correction.

A. Worn components should be replaced even if the damage is below the maximum limits.

B. Replace components that are worn beyond their maximum limits.

C. The maximum limits can not be exceeded when repairing the worn components.

A. 描述飞机发动机时，如果有发动机火灾监测或灭火系统，请描述其工作原理，并说明如何使用。

B. 描述飞机发动机时，如果安装有发动机火警探测或灭火系统，应予以描述、解释其工作原理，并说明如何使用。

C. 描述飞机发动机时，如果有发动机火情探测或熄灭系统，请描述其工作原理，并说明如何使用。

A. Licensed personnel appropriately finish the requirements of all other maintenance on airplane.

B. All other maintenance required on airplane should be done by the personnel who have the corresponding license.

C. All other maintenance requires that the properly licensed personnel should be on airplane.