生长育肥猪配合饲料中游离棉酚不超过60mg/kg。
参考答案:对
Her father is a famous writer, always makes her very proud.
A.that
B.which
C.who
D.what
以下因素可影响钾在细胞内外分布,除外()
A.糖代谢
B.体液pH
C.脂肪代谢
D.消化功能
E.肾和呼吸功能