This questionnaire is conducted on product purchase, brand cognition and marketing strategy perception of Yili Group. All answers are only for academic research and are anonymous throughout. Thank you for your cooperation!本问卷围绕伊利集团产品购买、品牌认知及营销策略感知展开调查,所有答案仅用于学术研究,全程匿名处理,感谢您的配合!