有關事故修理的說法是()。 ①屬臨時性修理;②不包括計劃修理內;③如時間巧合也可與計劃修理合并
A.①②③ B.①② C.②③ D.①③
15-50mm,50% B.10~40mm,40% C.15-50mm,40% D.10-40mm,50%
A.40mm,40% B.50mm,40% C.50mm,50% D.40mm,50%