Classificatian of pig is briefed, and sensory characteristic and disposing measure of boar and fat pig are distinguished.
简单介绍了生猪的种类,重点区分了肥猪与种猪的感观特征及处理措施。
简答网 · 双语娱乐资讯
简答网 · 高考英语
简答网 · 中考英语
简答网 · 四六级英语