A.毒性物質(zhì)B.腐蝕性物質(zhì)C.氧化性物質(zhì)D.易燃性物質(zhì)
A.當?shù)卣?br /> B.當?shù)毓簿?br /> C.當?shù)剡\管局 D.當?shù)匕脖O(jiān)局