购货凭证
参考答案：
指消费者向经营者购买商品或接受服务后从经营者那里所获得的发票或其他购货单据、书面凭证等，其中商业发票是其基本形式。
囊尾蚴病的唯一传染源是（）
A.牛带绦虫病人
B.猪带绦虫病人
C.吸血节肢动物
D.钉螺
E.猪
选出错误的一项并改正。
1. We works at school from Monday to Friday. __________
A B C D
2. My father are good at drawing pictures. __________
3. His brother is born on 1st October, 1985. __________
4. Mary like listening to music very much. __________
5. She has lot of work to do today. __________
