如果没有任何支架损坏，请继续此步骤。

A. The system part is used to support the head of the aircraft when the aircraft is on the ground.

B. The part of the system is to keep the aircraft nose on the ground.

C. That portion of the system supports the nose of the aircraft while the aircraft is on the ground.

A. Do a hardness test for turning tool.

B. Conduct a hardness test for the carbide insert.

C. Take a hardness test for the chuck.

A. 在飞机座舱增压系统部分，应描述如何识别潜在问题和处理紧急情况。

B. 在飞机座舱增压系统部分，应说明识别可能问题和处理障碍的方法。

C. 在飞机座舱增压系统部分，说明识别问题和处理紧急情况的方法。

A. Bleed the hydraulic system.

B. Pressurize the hydraulic system.

C. Depressurize the hydraulic system.

A. The component was damaged badly, the repairing cost is over 60% of the total price. The workshop suggests reporting as an unserviceable part.

B. The component was damaged heavily; the repairing cost is over 60% of the total price. The workshop suggests scrapping.

C. The component was destroyed heavily; the repairing cost is 60% of the total price. The workshop suggests segregation.

A. If there are metal fragments in the liquid sample, replace the pump.

B. If there are only small metal particles in the solid sample, replace the pump.

C. If there are metal particles in the sample solids, replace the pump.

A. 把返回文件放在安全的地方。

B. 把备份文件放在安全的地方。

C. 把备份文件放在安全的柜子中。

A. All essential or alternating equipment installed on a particular plane when provided shall be in the equipment list.

B. The equipment list shall include all necessary or alternative equipment installed on a particular aircraft when delayed.

C. The equipment list shall contain all required or optional equipment installed in the particular airplane when delivered.

A. 你可以根据单词在句子中的功能和意思了解它的位置，因为动词和形容词的位置不同。

B. 因为动词和形容词在句子中的位置不同，你可以根据单词的作用和意思来确定它的位置。

C. 单词在句子中的位置可以告诉你它的功能以及它的意思，因为动词和形容词有不同的位置。

A. 告诉一个人撤除轮挡。

B. 告诉A撤除轮挡。

C. 告诉一个人去拆卸机轮。