In 1944, the British Civil Airworthiness Requirements was developed to form the code of the Airworthiness Standards through which the requirements of the Air Navigation Orders and Regulations would be met.

A. 小心地把阀门组装在其位置上，并安装封圈和螺栓。

B. 小心地把阀门组件放置到位，并安装垫片和螺栓。

C. 小心地把组件阀门放置到位，并安装垫片和螺帽。

A. 本规范涉及FAA的各种调节。

B. 本规范参考了各种FAA条例。

C. 本规范称作FAA的各种规章。

A. 如果破环只针对中心轮毂，这个机轮是可以使用的。

B. 如果只损坏中间的胎面，这个轮胎是可以使用的。

C. 如果只伤及中间的纹理，这个轮胎是可维护的。

A. A towel is not used to dry the surface.

B. Use a towel to dry the surface.

C. The surface is dried without a towel.

A. “飞机性能”中的每一项均应对与数据相关的重要条件进行说明。

B. 每一项飞机性能都包含对重要条件和数据的说明。

C. “飞机性能”中的每一条目均应对数据及其重要条件之间的关联性进行说明。

A. In some cases, wires are color coded and these should be shown on the wiring diagram.

B. In some cases, wires are color coded and these should be installed on the wiring diagram.

C. In some cases, wires are color coded and these should be explained on the wiring diagram.

A. Landing gear position has no effect on stall speeds.

B. The position of the landing gear doesn＇t influence the surging speed.

C. The idle speed is not effected by the landing gear position.

A. Interior Labels and Signs are required for interior general and emergency information, instructions, cautions, warnings, etc.

B. Interior Placards and Markings are required for interior general and emergency information, instructions, cautions, warnings, etc..

C. Interior Placards and Signs are required for interior general and emergency information, instructions, warnings, cautions, etc.

A. If ordering any wire bundles from Boeing is mandatory, operators has the right to purchase the bundles from other supplier and ask them to provide the base wire bundle number (61-30396 in this case) and tail number of the airplane.

B. It is a necessity for the operators to provide the base wire bundle number (61-30396 in this case) and tail number of the airplane on which the bundle is to be installed if ordering any wire bundles from Boeing is necessary.

C. Operators should provide the number(61-30396 in this case) of the airplane where the bundles are to be installed on if ordering any wire bundles from Boeing is necessary.

A. 如果你看到染色，拆卸部件。

B. 如果你看到变色，更换部件。

C. 如果你看到有颜色，移除部件。