精益生产的三个主要目标是QCD,请问QCD分别指什么？ A、Quality, Customer, DeliveryB、Quality, Cost, DeliveryC、Question, Cost, DeliveryD、Question,, Customer, Delivery 精益生产的三个主要目标是QCD,请问QCD分别指什么？ A、Quality, Customer, DeliveryB、Quality, Cost, DeliveryC、Question, Cost, DeliveryD、Question,, Customer, Delivery