The units and components which provide a means of preventing or disposing of formation of ice and rain on various parts of the aircraft.

A. One of the safety precautions is to keep the combustible material from the work area at distance of 50ft at least.

B. One of the safety precautions is to keep the flammable material from the work area at distance of 50ft at least.

C. One of the safety precautions is to keep the combustible material from the work area at a minimum distance of 50ft.

A. 这是一个计划中的维修工作，看是否电池充电， 并且完整的备用飞行显示仪的电池组件是可操作的。

B. 这个维修任务计划是要检查如果电池充好电，内部备用飞行显示仪的电池组件是否是可操作的。

C. 此定期维护任务是检测综合备用飞行显示仪的电池充电器和电池组件是否工作。

A. The airworthiness problem needs to be resolved by the way any other airplane does in the operator＇s fleet has equal or more damaging corrosion, and it has to be done before the regular check of that zone.

B. The airworthiness problem needs immediate action ahead of the next planning inspection of that zone, because it would probably occur on another plane in the operator＇s fleet, causing equivalent or more serious corrosion.

C. Due to any other airplane in the operator＇s fleet could have the comparable or more vital corrosion, the airworthiness problem should be investigated immediately before the next periodic inspection of that zone.

A. The numbering of paragraphs and subparagraphs within a section is not required.

B. No numbers of paragraphs and subparagraphs is required in a section.

C. The numeral order of the paragraphs and subparagraphs is unnecessary in a section.

A. Removing it with special material is necessary if you find corrosion.

B. If you find corrosion, remove it with the specified material.

C. If corrosion is found, change the material to remove it.

A. This section of the Pilot＇s Operating Handbook shall contain only those limitations required by regulation or necessary for safe operation of the airplane and approved by the regulatory authority.

B. This section of the Pilot＇s Operating Handbook shall include only those restrictions required by the regulations and those restrictions issued by the regulatory authority to ensure the safe operation of the airplane.

C. This section of the Pilot＇s Operating Handbook shall contain the regulatory requirements approved by the authorities and publish the necessary restrictions only for the safe operation of the airplane.

A. 如果结果不同，请执行此测试。

B. 如果数值不同，请执行此测试。

C. 如果数值相同，请执行此测试。

A. 燃油泄漏会导致发动机受损。

B. 发动机性能与燃油泄漏无关。

C. 燃油渗漏会降低发动机性能。

A. 用电线把电缆接连到结构上。

B. 把钢索固定到结构上。

C. 把电线系到结构上的电缆上。

A. 陀螺的突然运转会引起水平安定面不必要的移动。

B. 陀螺的意外操作会引起垂直安定面不必要的移动。

C. 水平安定面的突然移动会引起陀螺的意外操作。