How many volumes of Anhui college entrance examination papers?

In 2023, Anhui college entrance examination used the national B volume. The national unified examination subjects of Anhui college entrance examination are: 3 plus liberal arts or science, of which 3 refer to Chinese, mathematics and foreign languages. In 2023, the new curriculum standard 1 volume, the new curriculum standard 2 volumes, the national A volume, the national B volume, in which Yunnan, Guizhou and other five provinces use the national A volume, and Henan, Anhui and other 12 provinces use the national B volume. The national unified college entrance examination paper, referred to as the national volume, is made by the examination center of the Ministry of Education and is applicable to most provinces and regions in China. In 2023, there were 4 national college entrance examination volumes, which were used by 28 provincial administrative regions.