A.技術(shù) B.質(zhì)量管理 C.生產(chǎn) D.營(yíng)銷
A.營(yíng)銷 B.設(shè)計(jì) C.采購(gòu) D.產(chǎn)品試制
A.25%~40% B.20%-40% C.10%-50% D.0.5%?5%