A.算術(shù)平均數(shù)法 B.調(diào)和平均數(shù)法 C.幾何平均數(shù)法 D.綜合指數(shù)法
A.115.5% B.5.5% C.15.5% D.5%
A.101.92% B.150.00% C.66.67% D.98.11%