A.3倍 B.5倍 C.10倍 D.15倍
A.5;10;20 B.5;10;10 C.5;10;50
A.標(biāo)準(zhǔn)普爾指數(shù) B.詹森指數(shù) C.特雷諾指數(shù) D.夏普指數(shù)