不定期维修检査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 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 m-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 manufacturers.正确答案A
