Three hearts, three shifts and three organizations. Three hearts, three shifts and three organizations constitute the 3+3+3 form of accounting testing.

1, 3-heart refers to meticulous and attentive' 3-heart' service.

2. Among them, three shifts means that the staff work in three shifts and work 24 hours a day.

2. Three of them refer to information registration, nucleic acid detection and result verification to ensure the rapid and orderly operation of service stations.