单项选择题
A.苯代邻氨基苯甲酸B.铬酸钾C.甲基红D.淀粉
A.NH4ClB.NaClC.NaOHD.KI
A.18B.36C.12D.48
A.≤1mg/100gB.≤2mg/100gC.≤3mg/100gD.≤4mg/100g
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