A.競(jìng)爭(zhēng)B.劣勢(shì)C.成功D.失敗
A.提高生產(chǎn)效率 B.幫你預(yù)測(cè)市場(chǎng)未來(lái)的走向和決策 C.規(guī)避風(fēng)險(xiǎn) D.降低成本
A.1955 B.1966 C.1977 D.1988