A.40% B.50% C.60% D.80%
A.直接費 B.規(guī)費 C.間接費 D.人工費
A.預(yù)算 B.概算 C.說明 D.圖紙
A.0.50% B.1% C.1.50% D.2%
A.19 B.24 C.36 D.48