743、航空器审定服务办公室是在副局长领导下的各办公室中的一个,它的职责是监督航空器审定管理局及华盛顿总部与设计, 生产和适航审定有关的各项工作

　Overseeing the Aircraft Certification Directorate, and the Washington Headquarters operations related to design, production, and approval is the duty of Aircraft Certification Service that is among the offices under the Associate Administrator.

　Among the offices under the Associate Administrator is the Aircraft Certification Service, which has the responsibility foroverseeing the Aircraft Certification Directorate, and the Washington Headquarters operations related to design, production, and airworthiness certification.

　Aircraft Certification Directorate which is one of the offices under the Associate Administrator is responsible for overseeingthe Aircraft Certification Directorate, and the Washington Headquarters operations related to design, production, andairworthiness certification

答案解析

正确答案：C

解析：

解析:注释: airworthiness certification 适航认证,适航审定。one of…之一; among 在三者或以上中(分配或选择)。

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