Students line up to enter the teaching building of No. 60 Middle School in Harbin, northeast China's Heilongjiang Province, May 12, 2022.
Schools in Harbin started resuming in-person classes in phases on Thursday. (Xinhua/Zhang Tao)
Students attend a class at No. 60 Middle School in Harbin, northeast China's Heilongjiang Province, May 12, 2022.
Schools in Harbin started resuming in-person classes in phases on Thursday. (Xinhua/Zhang Tao)
Students attend a class at No. 60 Middle School in Harbin, northeast China's Heilongjiang Province, May 12, 2022.
Schools in Harbin started resuming in-person classes in phases on Thursday. (Xinhua/Zhang Tao)
Students attend a class at No. 60 Middle School in Harbin, northeast China's Heilongjiang Province, May 12, 2022.
Schools in Harbin started resuming in-person classes in phases on Thursday. (Xinhua/Zhang Tao)
A student attends a class at No. 60 Middle School in Harbin, northeast China's Heilongjiang Province, May 12, 2022.
Schools in Harbin started resuming in-person classes in phases on Thursday. (Xinhua/Zhang Tao)
A medical worker takes a swab sample from a student for nucleic acid test at No. 60 Middle School in Harbin, northeast China's Heilongjiang Province, May 12, 2022.
Schools in Harbin started resuming in-person classes in phases on Thursday. (Xinhua/Zhang Tao)