Only major changes are highlighted.

A. 左1号登机门1号地板右前边缘有一条1英寸深6英寸长的凹陷。

B. 左1号登机门1号地板离右前边缘6英寸处有一条1英寸深的凹槽。

C. 左1号登机门有一块地板到右前边缘6英寸处有一条1英寸深的凹坑。

A. 将五份缺陷报告送到工程主管部门。

B. 将五份无损报告送到发动机权威人士。

C. 将五份探测报表送到主管工程师。

A. 可选择CAP以外的另外一种方式进行缩写。

B. 缩写CAP是同意使用的一种方式。

C. 做为另外一种选择，可以使用缩写CAP。

A. A Weight and Moment Limit diagram shall be used to describe the c.g. limits.

B. The maximum weight moment envelope diagram should be used to describe the c.g. limit of the aircraft.

C. A Weight and Moment Limit diagram shall be used to describe the maximum c.g. limit.

A. 描述飞机发动机时，应描述发动机中的任何齿轮减速系统。

B. 描述飞机发动机时，应描述发动机中的任何机械减速系统。

C. 描述飞机发动机时，应描述发动机中的任何齿轮降低系统。

A. The rules containing in this specification shall provide a guide to the formatting, type and method of all present documents in the manufacturer＇s maintenance manual.

B. The rules in this specification are served as a guide for the format, style and way of representation for all materials contained in manufacturer＇s maintenance manual.

C. The rules contained in this specification shall serve as guides for format, style and method of presentation for all material included in maintenance manuals prepared by manufacturers.

A. The auxiliary battery and auxiliary battery charger and the main battery connect together during non-normal conditions to help supply power.

B. In normal conditions,the auxiliary battery and auxiliary battery charger should be disconnected.

C. In non-normal conditions,the auxiliary battery and auxiliary battry charger should be disconnected.

A. The primary cause of valve failure is contamination of the hydraulic fluid.

B. The primary cause of valve failure is poisonousness of the hydraulic fluid.

C. The primary element of valve failure is contamination of the hydraulic fluid.

A. This program is partially important to type B parts.

B. This procedure is of particular importance to type B parts.

C. This procedure is not especially important to type B parts.

A. 更换有摩擦的导热垫。

B. 更换有磨损的隔热毯。

C. 更换有晃动的绝缘板。