A.12.5mg/m3 B.10.0mg/m3 C.0.0125mg/m3 D.0.01mg/m3 E.未給出配制時(shí)的溫度和大氣壓無法計(jì)算標(biāo)準(zhǔn)狀況下濃度
A.70% B.80% C.56% D.41.2% E.條件不足
A.0.01% B.0.009% C.0.05% D.0.005% E.0.001%