How many times will you send a time-travel text message?

1 time. There is a reasonable error in capturing the information of the intersection of time and space through big data. In order to protect the health and life safety of the general public to the maximum extent and block the spread of the epidemic in the shortest time, we will send a short message to the mobile phone where time and space meet, and receive the yellow code of the health code and the short message reminder from the Municipal Public Security Bureau and the Municipal CDC at one time. After receiving the text message, we will report to the community and complete the nucleic acid test twice within 3 days as soon as possible.