A.收發(fā)模塊\控制模塊 B.收發(fā)模塊\掛簽 C.讀寫器\掛簽 D.掛簽\射頻卡
A.ERP B.EDI C.POS D.GPS
A.通用商品條碼\不定長(zhǎng)度\連續(xù) B.通用商品條碼\定長(zhǎng)\連續(xù) C.統(tǒng)一產(chǎn)品條碼\定長(zhǎng)\連續(xù) D.統(tǒng)一產(chǎn)品條碼\不定長(zhǎng)\不連續(xù)