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(dāng)?shù)卣?br /> B.當(dāng)?shù)毓簿?br /> C.當(dāng)?shù)剡\(yùn)管局 D.當(dāng)?shù)匕脖O(jiān)局