A.剧毒
B.低毒
C.无毒

A.乙腈（ACN）、TBC、亚硝酸钠、甲苯
B.丁二烯、TBC、亚硝酸钠、甲苯
C.抽余油、TBC、亚硝酸钠、甲苯
D.甲苯、TBC、亚硝酸钠、残液

A.COD
B.ACN
C.BD
D.LP

A.10
B.11
C.12
D.13

A.2%—3%
B.1%—2%
C.1%—3%
D.3%—5%

A.200—500PPM
B.200—300PPM
C.300—500PPM
D.200—400PPM

A.小于等于15%
B.小于等于10%
C.大于等于20%
D.大于等于15%

A.小于等于15ppm
B.大于等于15ppm
C.小于等于20ppm
D.大于等于20ppm

A.15%—35%
B.15%—55%
C.35%—55%
D.0—55%