简述动物精液冷冻技术的基本流程。
参考答案：
采精→精液品质坚定→稀释液配制→稀释→降温→平衡→冷冻→保存。
My father is ______ ______ teacher. [ ]
A. saying to
B. speaking to
C. telling with
D. talking with
如何避免灭火器爆炸伤人？
