No. Xiangshan Dancheng Cao Qing Lane is located at the intersection of Houtang Street and South Street in Xiangshan County, Ningbo. There was no accounting exam in this field on September 30, 2022. The substance of nucleic acid detection is the nucleic acid of virus. Nucleic acid detection is to determine whether the patient is infected by COVID-19 by detecting whether there is nucleic acid of foreign invasive virus in respiratory tract samples, blood or feces.