阳光社区为玉树灾区捐款2020元，比益民社区多捐138元，益民社区捐多少元？
2020-138=1882（元）
读一读，想一想，写一写。
1. Your mother's mother is your _____________.
2. Your father's father is your _____________.
3. There are many animals in the _____________.
4. There are many things (物品) in a _____________.
巴氏消毒法多用于下列哪种食品
A．鲜奶
B．肉类
C．鱼类
D．罐头
E．食用油
