單項選擇題
A.30mg/m3(20ppm) B.75mg/m3(50ppm) C.150mg/m3(100ppm) D.15mg/m3(10ppm)
A.粘膜 B.腸胃 C.呼吸道 D.皮膚
A.15 B.100 C.20 D.10
A.15mg/m3(10ppm) B.12.5mg/m3(10ppm) C.10mg/m3(6.59ppm) D.30mg/m3(20ppm)
A.50 B.60 C.70 D.80
A.20ppm B.10ppm C.100ppm D.30ppm
A.8 B.5 C.15 D.10
A.30 B.15 C.150 D.20
A.15 B.75 C.30 D.100
A.5 B.8 C.20 D.10
A.10 B.50 C.99 D.95