A.3 B.3.5 C.3.6 D.4
A.25 B.24.5 C.26 D.24.9
A.帕氏指數(shù) B.加權(quán)調(diào)和平均數(shù)指數(shù) C.鏈?zhǔn)嚼现笖?shù) D.拉氏指數(shù)