企业应有专人负责用户投诉处理，并详细记录客户投诉内容。（）
A. 对
B. 错
一级召回应在24小时内通知客户，每三日向省级药品监督管理部门备案。（）
A. 对
B. 错
How many situations has been metioned in the video on small talk？
A. small talk with strangers
B. small talk with coworkers
C. small talk with family or friends
D. small talk in various situations
What are the possible topics for one you meet at a grocery
A. the weather
B. the current situation
C. your family
D. your hobbits
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