Six pictures! Help you understand the "high-frequency synonyms" in this round of epidemic prevention and control

Six pictures! Help you understand the "high-frequency synonyms" in this round of epidemic prevention and control

Venue code and health code, antigen test and nucleic acid test, close contacts, secondary close contacts and general contacts, travel history and stopover history... Can you distinguish between these "synonyms" that frequently appear in recent epidemic prevention and control?

Source: Xinhuanet Sike

Producer: Tang Xinyi

Editor: Ma Yucong

Map: Li Quan

Proofreading: Cui Yicong

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