A.Hg、Ge、Cu、Mo B.Hg、Cd、Pb、As C.Hg、Gd、Mn、Zn D.Hg、Pb、As、Cu E.Hg、Pb、As、Fe
A.20~24℃ B.25~30℃ C.30~35℃ D.35~40℃ E.40~45℃
A.13%~14% B.14%~16% C.17%~18% D.18%~19% E.19%~20%