A.2.5mg/L、4mg/L、6mg/L、12mg/L、15mg/L B.2.5mg/L、5mg/L、6mg/L、10mg/L、15mg/L C.2mg/L、4mg/L、6mg/L、10mg/L、15mg/L D.2mg/L、5mg/L、6mg/L、12mg/L、15mg/L
A.8mg/L、6.5mg/L、5mg/L、4mg/L、2mg/L B.7.5mg/L、6mg/L、5mg/L、3mg/L、2mg/L C.8mg/L、6mg/L、5.5mg/L、4mg/L、2.5mg/L D.7.5mg/L、6.5mg/L、5.5mg/L、3mg/L、2.5mg/L
A.5.5~9(无量纲) B.6~9(无量纲) C.6.5~9(无量纲) D.7~9(无量纲)