A parent holding flowers waits outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Ren Chao)

An examinee receives a bouquet of flowers after finishing the national college entrance exam outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Liu Jinhai)

Examinees leave an exam venue after finishing the national college entrance exam in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Liu Jinhai)

Parents holding flowers wait outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Peng Ziyang)

Examinees leave an exam venue after finishing the national college entrance exam in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Shen Bohan)

A mother holding a cake waits outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Shen Bohan)

An examinee shows his school uniform with signatures of his schoolmates outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Shen Bohan)

An examinee signs on the school uniform of his schoolmate as a souvenir outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Shen Bohan)

Examinees gesture as they leave an exam venue after finishing the national college entrance exam in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Shen Bohan)

Examinees hug each other after finishing the national college entrance exam outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Chen Zhonghao)

Parents wait for examinees outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Ren Chao)

Examinees pose for photos after finishing the national college entrance exam outside an exam venue in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Chen Zhonghao)

Examinees leave an exam venue after finishing the national college entrance exam in Beijing, capital of China, July 10, 2020. The annual national college entrance exam in Beijing concluded on Friday. (Xinhua/Ren Chao)