A.萃取 B.吸附 C.沉降
A.雜質(zhì) B.不飽和化合物 C.水
A.8-10 B.10-12 C.15-20 D.20-30
A.0.1 B.0.001 C.1 D.10
A.1.1-2.0 B.1.2-2.1 C.1.6-2.5 D.1.7-2.5