Review marketing: Refers to the marketing model in which merchants use customer reviews of goods and services to guide consumer propensity and promote product promotion and sales. Which of the following are critical marketing? ["A traditional Chinese medicine research institute held a series of public welfare lectures on traditional Chinese medicine ointment. Many beneficiaries 'beneficiaries' appearances have aroused the attention of many citizens.", "A shopping website has established a buyer's reputation evaluation mechanism to help sellers screen malicious negative customers and add them to the blacklist, which has quickly increased store sales.", 'After a restaurant launched the "Like Prawn for Lobster" campaign, nearly 2,000 fans questioned its rules and quality of lobster, and its sales dropped sharply.', 'A well-known home appliance company has launched a new product. The professional evaluation of experts in the industry is prominently printed on the outer packaging.']