A.5-15 B.10-20 C.15-25 D.20左右
A.3-6 B.4-6 C.5-8 D.6-8
A.綜合分?jǐn)?shù) B.權(quán)重系數(shù) C.平均分?jǐn)?shù) D.穩(wěn)定系數(shù)