GUIYANG, May 5 (Xinhua) -- Junior and senior high schools reopen in Guiyang, southwest China's Guizhou Province.

After students in their last year at junior and senior high schools returned to schools on March 16, all the other high school students in Guiyang resumed classes on May 4 with strict prevention measures against COVID-19.

In this aerial photo taken on May 4, 2020, students of the Guiyang No. 16 Middle School attend a school reopening ceremony in Guiyang, southwest China's Guizhou Province. (Xinhua/Ou Dongqu)

In this aerial photo taken on May 4, 2020, students of the Guiyang No. 16 Middle School practice jumping rope in Guiyang, southwest China's Guizhou Province. (Xinhua/Ou Dongqu)

A student washes his hands at the Guiyang No. 16 Middle School in Guiyang, southwest China's Guizhou Province, May 4, 2020. (Xinhua/Ou Dongqu)

Students of the Guiyang No. 16 Middle School do physical exercises in Guiyang, southwest China's Guizhou Province, May 4, 2020. (Xinhua/Ou Dongqu)

Students of the Guiyang No. 16 Middle School have a class in Guiyang, southwest China's Guizhou Province, May 4, 2020. (Xinhua/Ou Dongqu)

Students of the Guiyang No. 16 Middle School have a class in Guiyang, southwest China's Guizhou Province, May 4, 2020. (Xinhua/Ou Dongqu)

Students of the Guiyang No. 16 Middle School have a class in Guiyang, southwest China's Guizhou Province, May 4, 2020. (Xinhua/Ou Dongqu)