A.品質(zhì)數(shù)列 B.變量數(shù)列 C.組距數(shù)列 D.單項(xiàng)數(shù)列 E.等距數(shù)列
A.按行業(yè)分組 B.按職工人數(shù)規(guī)模分組 C.按經(jīng)濟(jì)所有制性質(zhì)分組 D.按年生產(chǎn)能力分組 E.按隸屬關(guān)系分組