264、The laptop has three primary parts.

A. 　 The pump is installed behind the hydraulic motor.

B. 　 The gearbox is installed behind the pneumatic motor.

C. 　 The hydraulic motor is installed behind the pump.

A. 　扩孔(铰孔)至直径达到 8.00+/-0.003 毫米。

B. 　钻孔至半径达到 8.00+/-0.003 毫米。

C. 　钻孔至直径达到 8.00+/-0.003 微米。

A. 　 illustrations should be used when they will simplify, shorten or make the text easier to understand.

B. 　 When illustrations can simple, shorten or r make the text easy for understanding, they may be used.

C. 　 Whenever diagram is can simple, shorten or make the understand, they could be used.

A. 　1944 年,随着空中航行法令和规章的各种要求得以实现,英国民用适航机构形成了适航标准的法典

B. 　1944 年,英国制定了民用适航要求来形成空中航行指令和规则守则。

C. 　1944 年,随着英国民用适航要求的制定,形成了适航标准的法典,通过该法典,空中航行法令和规章的
各种要求得以实现。

A. 　 This guide is the most useful for pilots, is also industry standardized, and the concepts in it have been
supplied basically.

B. 　 This concept is the most useful for pilots, is also industry standardized, and the guides in it have been
confirmed basically.

C. 　 This guide is the most useful for pilot, is also industry standardized, and the concepts in it have been
confirmed basically.

A. 　 Do not give vague, general information.

B. 　 Do not provide clear, general information.

C. 　 Do not list complex, valid information.

A. 　解释如何避免和注意燃油消耗

A. 　紧握住缸体

B. 　轻轻握住圆柱体

C. 　紧握住作动筒

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. 　制定本规范的目的是为了降低成本

B. 　本规范是为了减少失误而制定的

C. 　规范的制定是为了发展航空安全