This task checks to make sure that the interphone communication between the flight crew and the attendants operates correctly.

A. Structural fasteners are not included in the normal maintenance items, they are provided separately in the maintenance information.

B. Structural fasteners do not belong to normal maintenance items, so the maintenance information does not include this part of the content.

C. Some structural fasteners can be repaired during normal maintenance, so the maintenance information includes the corresponding content.

A. The inlet door actuator is installed aft of the rear pressure bulkhead on the inner side of the air inlet door.

B. The air inlet actuator is mounted on the side of the pressure bulkhead behind the intake valve.

C. The air release actuator is located on top of the pressure bulkhead inside the intake valve.

A. 进气道指空气进入压气机前所经过的部分，包括导向叶片、罩环和机匣。

B. 空气进入压缩机部分的进气口部分包括导向叶片、护罩和箱子等项目。

C. 空气进入压缩机部分的进气口部分包括导向叶片、横桅索和箱子等项目。

A. The basis for assuring an airplane remains airworthy and safe to operate is to combine the manufacturer＇s requirements with sound inspection and maintenance practices.

B. To ensure airworthiness and safe operation of an airplane, it is essential to follow the manufacturer＇s instructions in the utilization of airplane, and perform sound inspection and maintenance practices as well.

C. Airworthiness and safe operation are fundamental to aircraft utilization as required by the manufacturer, so sound inspection and maintenance practices are carried out.

A. 这些ALIs 是强制性的，未经负责飞机型号证书的FAA 办公室或适用的监管机构的批准，不能更改或删除。

B. 这些ALIs 是指令性的，未经FAA办公室批准不得更改或删除。FAA办公室负责飞机型号证书，或发布适用的管理规章。

C. 这些ALIs 是非常必要的，任何更改或删除必须获得FAA办公室批准，或者其他可以颁发飞机型号证书的监管机构的批准。

A. If the error is more than 3 degrees, calibrate the glide slope.

B. If the error is more than 3 degrees, calibrate the compass.

C. If the error is more than 3 degrees, calibrate the gyroscope.

A. 提高温度以缩短固化时间。

B. 提高温度以缩短治疗时间。

C. 降低温度以增加固化时间。

A. 对2号发动机进行维修。

B. 对2号发动机进行改装。

C. 对2号发动机进行大修。

A. Transfer the rod in the contrary directivity.

B. Remove the rod in the contrast direction.

C. Move the rod in the opposite direction.

A. Documents must be temporarily edible.

B. Documents must be readily revisable.

C. Documents must be permanently durable.