According to the query of the college entrance examination network, the national B volume is mainly for Henan, Shanxi, Jiangxi, Anhui, Gansu, Qinghai, Inner Mongolia, Heilongjiang, Jilin, Ningxia, Xinjiang and Shaanxi, so the national college entrance examination mathematics B volume * * * is used in this 12 province, and Shanxi college entrance examination mathematics is the national B volume. Shanxi, referred to as "Jin" for short, is a provincial administrative region of People's Republic of China (PRC). Taiyuan, the capital, is located in North China, bordering Hebei in the east, Shaanxi in the west, Henan in the south and Inner Mongolia in the north, with a total area of156,700 square kilometers.