A.統(tǒng)計(jì)常數(shù) B.統(tǒng)計(jì)參數(shù) C.計(jì)算常數(shù)
A.可估量 B.可計(jì)量 C.可測量
A.祖先優(yōu)秀 B.父母優(yōu)秀 C.祖代優(yōu)秀