504、Clean the exterior of the equipment and its mounting shelf hardware using a vacuum cleaner and brush!

A. 　 The distance between the edge of the panels and the partition must be less than 0.05 mm.

B. 　 The distance between the edge of the panel and the partition must be equal to 0.05mm

C. 　 The distance between the edge of the panel and the partition must be 0.05 mm or less.

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. 　 Humidity adjustment is manual.

B. 　 Pressure adjustment is automatic.

C. 　 Temperature adjustment is automatic.

A. 　 There is a controlled general dictionary in STE, The words in this dictionary are occasionally used in
technical writing.

B. 　 STE has a controlled General dictionary in which the words are seldom used in technical writing.

C. 　 STE has a controlled general dictionary; this dictionary gives the words that are often used in technical
writing.

A. 　 If the air intake flap is not serviceable lock the air inlet valve in the fully open position.

B. 　 Once the air intake flap does not work, activate the air inlet valve.

C. 　 Deactivate(失效) the air inlet valve unless the air intake flap is useable.

A. 　这个程序包括拆卸恒速驱动装置(CSD)的说明。

B. 　此程序包括删除恒速驱动装置(CSD )的指令。

C. 　这个程序包括指令来去除恒速驱动装置(CSD)。

A. 　 Dry all metal parts that have different metal inserts or deep blind holes in an oven at 225 to 275F(107 to 135C) for a minimum of one hour.

B. 　 Put all different metal inserts or deep blind holes metal parts in an oven at 225 to 275F(1070to 135C) for a maximum of one hour.

C. 　 All metal parts that have different metal inserts or deep blind holes are dry in an oven of 225 to 275F(107 to 135 C) for a minimum of one hour.

A. 　 However, manufacturers may omit System/Chapters that are not applicable to the product or combine
Systems/Chapters where it is feasible.

B. 　 However, manufacturers may adopt Systems/Chapters that are not applicable to the product or constitute
systems/Chapters when necessary

C. 　 However, operators may omit Systems/Chapters applicable to the product or constitute Systems/Chapters
where practical.

A. 　飞行员操作手册的本节应描述飞机的方式,该方式应是制造商认为合理且能为飞行员提供有效的信息。

B. 　飞行员操作手册的本节应以制造商认为对最有可能操作飞机的飞行员来说最能提供有效信息的方式来描
述飞机。

C. 　飞行员操作手册的本节内容应以合理的方式描述飞机,且是制造商认为最能为飞行员提供有效信息的。

A. 　 All publications shall use the standard numbering system.

B. 　 All documents and materials shall use the standardized numbering index system

C. 　 All publications shall use the standard numbering system for indexing.