The airplane has been maintained in accordance with manufacturer recommendations or equivalent.

A. The responsibility of ABC is not to modify the airplanes that belong to STC.

B. It is not STC＇s responsibility to modify ABC＇s aircraft.

C. ABC is not in charge of the aircraft modified by STC.

A. 他拆下入口盖板来看是否有腐蚀的管路。

B. 他移开进入面板检查生锈的管道。

C. 他拆掉了近进盖板看到了腐蚀了的管路。

A. Vigorously scrub the surface with a rough, dry cloth.

B. Polish the surface with a soft, damp cloth.

C. Rub the surface quickly with a soft, dry cloth.

A. 飞机的五大结构包括机身，机翼，副翼，升降舵和起落架．

B. 飞机包括五个主要结构单元，它们是机身，机翼，安定面，飞行操纵舵面和起落架．

C. 飞机主要有五个结构部分，它们是机头，机翼，副翼，升降舵和起落架．

A. 列出只是示例的技术名称。不需要列出所有可能的技术名称。

B. 列出的技术名称是唯一的示例。这个包括所有可能的技术名称列表并不完整。

C. 列出的技术名称只是示例。该列表没有完整地列出所有可能的技术名称。

A. 如果使用一个公司出版样式的手册，那么手册的格式和布局应当遵循本规范。

B. 如果一个公司出版的手册被使用，那么该手册的格式和布局即纳入规范的要求。

C. 如果一个公司使用了按自己的样式出版的手册，那么手册的格式和布局须遵循本规范。

A. A maximum distance of 50 feet is required between consumable materials and the work area.

B. Keep flammable materials at a minimum distance of 50 feet from the work area.

C. Explosive materials must be kept at least 50 feet away from the work area.

A. Loosen the cross nuts [10] on reducer [7] and standby valve [8] on each end of air pressure filter assembly [1].

B. Loosen the swivel nuts [10] on reducer [7] and bypass valve [8] on each end of air pressure filter assembly [1].

C. Loosen the cotter nuts [10] on reducer [7] and bypass valve [8] on each end of air pressure filter assembly [1].

A. 该规范包括一些新材料或新方法。

B. 该规范包含小型的新材料和新方法。

C. 该规范几乎不包括新材料或新方法。

A. Operational Tags need to be listed or made a legend.

B. Operating Placards shall be listed or illustrated.

C. Operation Instructions have to be listed or mapped out.