"EMERGENCY EXIT" placard at exit hatch over Left wing is illegible.

A. 包含飞机持续适航程序的主要文件是飞机的维修手册。

B. 主要文件包括飞机初始适航程序，称为飞机维修手册。

C. 飞机维修手册的主要文件包括飞机持续运行程序。

A. The coating thickness must be more than 0.05mm and less than 0.06mm.

B. The thickness of the second coating layer must be 0.05mm and 0.06mm.

C. The thickness of primer layer must be between 0.05 mm and 0.06 mm.

A. Notes emphasize conditions such as operating procedures, inspection, repair or maintenance, etc., which may be met as appropriate.

B. Notes emphasize the conditions of operation procedure, inspection, repair or maintenance, etc., must be followed.

C. Conditions for operating procedures, inspection, repair or maintenance, etc. must be emphasized in the notes.

A. 通常，涡轮发动机转速计会以涡轮额定最大转速的百分比测量转速。

B. 涡轮发动机转速计通常会测量一个百分比转速，并与涡轮的正常最大转速比对。

C. 涡轮发动机转速计通常测量的速度与涡轮发动机最大名义转速成正比。

A. 当压气机机匣被冷却后，压气机叶片间距变小。

B. 当涡轮机匣被冷却后，涡轮叶尖距变小。

C. 当涡轮机匣被冷却后，涡轮叶片间距变小。

A. Each of the two life vests located at L2 entry door flight crew station is damaged.

B. Each of the two life vests located at L2 entry door flight crew station is out of time limit.

C. Each of the two life vests located at L2 entry door flight crew station is out of service.

A. 文件必须经常修订。

B. 文件必须易于修订。

C. 文件必须容易阅读和看见。

A. 确保着陆时切断灯的开关电源连接。

B. 确保着陆灯断开电门的电连接是安全的。

C. 确保着陆灯安全切断了开关电源连接。

A. Those units and components are used to keep account of data that is unrelated to a particular system.

B. The purpose of those units and components is to obtain values that are independent of a particular system.

C. The function of these units and components is to save the files that have nothing to do with a peculiar system.

A. Handbooks shall be ready to revise in accordance with the specification.

B. In accordance with the specification, manuals should be easy to revise.

C. Handbooks have been already revised, according to the specification.