A.二氧化硫B.二氧化碳C.氮氧化合物D.可吸入顆粒物
A.1000-1200AB.1000-1300AC.1200-1400AD.900-1000A
A.銀:115-150g/l、銅<38g/lB.銀:145-150g/l、銅>38g/lC.銀:145-150g/l、銅≤38g/lD.銀:115-150g/l、銅≥38g/l