15。 According to the ranking of Xiaoshan School, Boya Primary School in Xiaoshan ranks 15th in the whole region, so it is 15th. Xiaoshan District, a municipal district of Hangzhou, Zhejiang Province, is located in the north of Zhejiang Province, the south bank of Hangzhou Bay and the south bank of Qiantang River. It is located in the south wing of the Yangtze River Delta, where the county economy in China is the most active, and it is adjacent to Keqiao District of Shaoxing City in the east.