A word in UPPERCASE letters is approved in STE.

如果污染物造成孔堵塞超过 50%，就要清洁显示组件后面的孔。

A. If as many as 50% of the holes are contaminated, you should clean the display units behinds the holes.

B. The holes on the bottom of the display unit should be cleaned once over 50% of them are clogged due to contamination.

C. If contamination causes a blockage of more than 50 percent of the holes, then clean the holes on the rear of the display units.

管子的直径太小了。

A. The radius of the duct is too small.

B. The diameter of the tube is too small.

C. The circumference of the pipe is too small.

If you install the upper drag strut with the head down, it will hit the lower drag strut during retraction.

A. 如果你将上阻力杆的头部安装在下部，它会在作动时碰撞到下阻力杆。

B. 如果安装上阻力杆时将其倒置，在收起时它会碰撞到下阻力杆。

C. 将上阻力杆倒置，使其在放出时与下阻力杆相连。

Procedures for a parked aircraft are included in AMM such as periodic engine running, control or drainage of fluid systems, static grounding, etc.

A. AMM中有停放飞机的程序，例如发电机重复开车、控制或排放油液系统、静态接地等。

B. AMM中有停放飞机的程序，例如发电机定期开车、控制或排放油液系统、静电接地等。

C. AMM中有停放飞机的程序，例如发电机重复开车、对油液系统控制和放泄、静态接地等。

Make sure that the wire is in the position to cause the parts to lock.

A. Make sure the wire in this position is able to unlock the parts.

B. The wire must be positioned so that the parts can oscillate freely.

C. Ensure the wire is positioned to create a locking motion on parts.

Two methods of refueling are available.

A. There are two methods of loading the tank.

B. The load is determined in two ways.

C. You have to fill the tank twice.

A Safety and Operational Tips section may be incorporated in the Pilot＇s Operating Handbook. It may contain: (a) Safety information of a general nature, such as: 1. kinds of information and rules to be found in FAA publications; 2. how to conduct various airplane inspections; 3.medical problems and information (vertigo, hypoxia, fatigue, affects of scuba diving, etc.); and 4.any other information that would enhance the safe use of the airplane. 5.Child restraint systems: A small child should use an approved child restraint seat. The child should not be held or share a seat belt with another person.

A. 《飞行员操作手册》可编排“安全和操作提示”相关内容。该部分可包含： (a)通用的安全信息，如： 1.FAA文件中包含的相关信息和规则； 2.如何对飞机进行各种检查； 3.医疗问题和信息（眩晕、缺氧、疲劳、缺氧影响等）；和 4.任何其他可增强飞机安全使用的信息。 5.儿童约束系统： 儿童应使用安装有经批准的儿童约束系统的座椅。 儿童不应被抱着或与他人共用安全带。

B. 《飞行员操作手册》中可包含“安保和运行提示”部分。它可能包含： (a)一般性质的安保信息，如： 1.在FAA出版物中可以找到的各种信息和规则； 2.怎样进行各种飞机检查； 3.医疗问题和信息（眩晕、低氧、疲劳、缺氧影响等）；和 4.任何其他可增强飞机安全使用的信息。 5.儿童约束系统： 儿童应使用经批准的儿童约束座椅。 儿童不应被抱着或与他人共用安全带。

C. 《飞行员操作手册》中可包含“安检和操纵提示”部分，可以包含： (a)一般性质的安全信息，如： 1.在FAA出版物中可以找到的各种信息和规则； 2.怎样进行各种飞机检查； 3.医疗问题和信息（眩晕、低氧、疲劳、缺氧影响等）；和 4.任何其他可增强飞机安全使用的信息。 5.儿童约束系统： 儿童应使用经批准的儿童约束座椅。 儿童不应被抱着或与他人共用安全带。

Operate the dimmer switch and make sure that the intensity of the light changes.

A. 操作调光开关，确保光线的强度发生变化。

B. 操作旋转式开关，确保灯光发生变化。

C. 已调节明暗开关，灯光的亮度发生了变化。

Air intakes consist of items such as nose ring cowls, vortex generators and plumbing.

A. 进气口由很多部件组成，包括机头整流罩、涡流发生器以及管道。

B. 进气口由很多部件组成，包括前环形整流罩、涡流发生器以及电缆。

C. 进气道包括前环形整流罩、涡流发生器以及管路等部件。

将拆下的紧固件报废。

A. Discard the removed fasteners.

B. Throw away the removed components.

C. Leave out the removed gaskets.