An examinee walks out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

Examinees walk out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

Examinees walk out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

Examinees walk out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

An examinee hugs her teacher at an exam site of a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

Examinees walk out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

(210608) -- NANCHANG, June 8, 2021 (Xinhua) -- An examinee is greeted by her parent (R, front) while walking out of an exam site at a high school in Nanchang, the capital city of east China's Jiangxi Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Wan Xiang)

(210608) -- HOHHOT, June 8, 2021 (Xinhua) -- Parents wait outside an exam site at a high school in Hohhot, north China's Inner Mongolia Autonomous Region, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Bei He)

(210608) -- NANCHANG, June 8, 2021 (Xinhua) -- An examinee is greeted by her parent (R, front) while walking out of an exam site at a high school in Nanchang, the capital city of east China's Jiangxi Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Wan Xiang)

Examinees walk out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

Examinees walk out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

Examinees walk out of an exam site at a high school in Guiyang, the capital city of southwest China's Guizhou Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Tao Liang)

(210608) -- ZHENGZHOU, June 8, 2021 (Xinhua) -- An examinee is greeted by her parent while walking out of an exam site at a high school in Zhengzhou, the capital city of central China's Henan Province, June 8, 2021. China's annual college entrance exam concluded on Tuesday in some parts of the country. Considered the world's most grueling test, the exam, better known as the Gaokao, saw a record 10.78 million candidates signing up this year. (Xinhua/Zhu Xiang)

来源：Xinhua