A.競(jìng)爭(zhēng)對(duì)手的銷售規(guī)模B.競(jìng)爭(zhēng)對(duì)手的產(chǎn)品構(gòu)成C.競(jìng)爭(zhēng)對(duì)手的生產(chǎn)范圍D.競(jìng)爭(zhēng)對(duì)手的客戶基數(shù)