A.≤0.05% B.≤0.1% C.≤0.2% D.≤0.5%
A.≤1g/100g B.≤2g/100g C.≤5g/100g D.≤10g/100g
A.硫酸鎂 B.硫酸鉀 C.硫酸鋅 D.硫酸鋇