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单选题
不定期维修检查是指制造商认为特殊或不寻常的情况下对飞机、其系统和组件进行的维修检查和检验，这些检查和检验与上文-10规定的时限无关。
A
Unscheduled maintenance checks are those maintenance checks and inspections on the aircraft, its systems and units which are recognized by the manufacturer as special or unusual conditions which are not related to the time limits specified in -10 above.
B
For the unscheduled maintenance checks and inspections of aircraft, aircraft systems and components, the manufacturer shall not include special or unusual conditions from the time limits specified in -10.
C
If the unscheduled maintenance checks and inspections on the aircraft, its systems and units are special or unusual conditions, the time limits specified in -10 shall be referred to by the manufacturer＇s.
答案解析
正确答案：A
相关知识点：
不定期维修检查定义要记
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