供港澳活牛中转仓设计存栏数量不得少于( )头。
A.20
B.50
C.80
D.100
参考答案:A
解析:[精解] 供港澳活牛中转仓设计存栏数量不得少于20头。
-We're going to Greece for vacation.
— [ ]
A. I'm sorry to hear that.
B. I know it now.
C. Really? What a pity!
D. Have a good time!
直接在火焰中烧灼灭菌的方法称为
A.火焰灭菌法
B.干热空气灭菌法
C.热压灭菌法
D.射线灭菌法
E.滤过灭菌法