仔猪贫血是以(?)为主的造血物质缺乏所致的仔猪营养代谢病。A．缺铁B．缺锌C．缺钙D．缺维生素CE．缺维生素A

作者: rantiku 人气: - 评论: 0

问题仔猪贫血是以(?)为主的造血物质缺乏所致的仔猪营养代谢病。

选项 A．缺铁 B．缺锌 C．缺钙 D．缺维生素C E．缺维生素A

答案 A

解析

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