Dehui went to Qiqihar to ask for the nucleic acid proof code of the paper. Is the nucleic acid proof on the mobile phone good?

It's good. The paper-based nucleic acid health code is printed from the electronic version, which is convenient for Dehui to go to the electronic version of Qiqihar mobile phone, as long as it can be proved that there is a 48-hour nucleic acid test. Nucleic acid detection is a common virus detection method, which can play a good role in epidemic prevention.