A:一片农田
B:一块草地
C:生物圈
D:一条河中的鱼
西郊农场有96头奶牛,每头奶牛每天产奶30千克,农场日产牛奶多少千克.
A. At eleven o'clock.
B. I don't think so.
C. I'm going to swim with Tim.
D. It's five o'clock.
E. He is going to take pictures.