A.0.1~0.2 B.0.2~0.3 C.0.5~0.1 D.0.5~2
A.10%~15% B.20%~30% C.20%~60% D.20%~80%
A.生產(chǎn)準(zhǔn)備過程 B.基本生產(chǎn)過程 C.輔助生產(chǎn)過程 D.生產(chǎn)服務(wù)過程