Examinees enter the exam site at the Beijing Zhongguancun High School in Beijing, capital of China, July 17, 2020. The high school entrance examination of Beijing began on Friday and will last until July 19. (Photos: Xinhua/Ren Chao)

Examinees enter the exam site at the Beijing Zhongguancun High School in Beijing, capital of China, July 17, 2020. The high school entrance examination of Beijing began on Friday and will last until July 19.

An examinee's credential is checked at the exam site at the Beijing Zhongguancun High School in Beijing, capital of China, July 17, 2020. The high school entrance examination of Beijing began on Friday and will last until July 19.

Examinees enter the exam site at the Beijing Zhongguancun High School in Beijing, capital of China, July 17, 2020. The high school entrance examination of Beijing began on Friday and will last until July 19.

Examinees enter the exam site at the Beijing Zhongguancun High School in Beijing, capital of China, July 17, 2020. The high school entrance examination of Beijing began on Friday and will last until July 19.

Examinees enter the exam site at the Beijing Zhongguancun High School in Beijing, capital of China, July 17, 2020. The high school entrance examination of Beijing began on Friday and will last until July 19.

Examinees prepare at the exam site at the Beijing Zhongguancun High School in Beijing, capital of China, July 17, 2020. The high school entrance examination of Beijing began on Friday and will last until July 19.