问题
问答题 简答题
简述影响动物对养分消化的因素。
答案
参考答案:
(1)动物粗纤维,反刍>单胃动物
种类、动物年龄、性别
(2)饲料因素:饲料种类、饲料成分、植物生长阶段、饲粮组分
(3)加工调制
简述影响动物对养分消化的因素。
参考答案:
(1)动物粗纤维,反刍>单胃动物
种类、动物年龄、性别
(2)饲料因素:饲料种类、饲料成分、植物生长阶段、饲粮组分
(3)加工调制
从方框中选出适当的句子补全对话,其中有两项是多余的。 | |
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A: Hi, Jack. You were not at school yesterday. (1) B: Oh, I had a headache and I had to ask for a sick leave. A: Sorry to hear that. (2) B: Yes, my mother took me to the hospital. The doctor looked me over and said I had caught a cold. A: (3) B: Yes, a little. The doctor told me to take these pills three times a day and drink more water. A: (4) B: Yes, much better. A: (5) B: I will. Thank you. |