单项选择题
A.酸性事故槽B.碱性事故槽C.残液储槽D.酸性回收槽
A.≤3mg/LB.≤4mg/LC.≤0.15mg/LD.≤1.5mg/L
A.0.1~0.3g/lB.0.1~0.3mg/lC.2~6g/lD.2~6mg/l