877、Do not loosen the nut to align it.

A. 　 The lower seal appears as the lower bearing is pulled down.

B. 　 You can see the lower seal before pulling the lower bearing down.

C. 　 Only after you pull the lower seal down can you see the lower bearing.

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. 　 This Specification was issued by the General Aviation Manufacturers Association.

B. 　 This Specification was revised by the General Aviation Manufacturers Association.

C. 　 This Specification was compiled by the General Aviation Manufacturers Association.

A. 　 The airworthiness and safe operation of an airplane is assured if it's used as its original design purpose,properly inspected and carefully maintained.

B. 　 The manufacturer is intended to utilize an airplane with sound inspection and maintenance practices because that is the basis for assuring the airplane remains airworthy and safe to operate.

C. 　 The airplane is designed to be used as the manufacture 's intention. Users shall properly inspect the airplane and do sufficient maintenance to assure its airworthiness and operation safety.

A. 　 ln either case, a chart will be included in showing standard symbols used throughout the manual.

B. 　 ln both cases, a figure will be contained to show the normal symptoms used in the whole manual.

C. 　 Through-the handbook, a form shall be used to show the normal signs in these two cases.

A. 　关于“限制”和“紧急程序”的章节放在“正常程序”、“性能”之前,“载重和平衡”和其他章节更容易获得飞行中
可能需要的信息。

B. 　关于“限制”和“紧急程序”的章节放在“正常程序”、“性能”,“载重和平衡”和其他章节之前,以便更容易地获
取飞行中可能需要的信息。

C. 　关于“限制”和“紧急程序”的章节放在前面,“正常程序”、“性能”、“载重和平衡”和其他章节用于更容易地获
取飞行中可能需要的信息,

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

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

A. 　在执行此程序过程中请使用 12 英寸的套筒扳手。

B. 　在此过程中使用 12 英尺套筒手柄。
c、在此过程中使用 12 号扳手手柄。

A. 　 The fuselage is a semi-monocoque structure

B. 　 The fuselage is a demi-plate.

C. 　 The airframe is of half-shell structure.

A. 　 The function and operation of each unit in the system should be described. The location of the units
shouldn’t' be described.

B. 　 The function, operation and location of each unit in the system should be deleted.

C. 　 The function, operation and location of each unit in the system should be described. (描述)