Xinjiang BBK Bookstore. The place where you can buy the synchronized exercise book of Xinjiang version of fifth grade mathematics is Xinjiang BBK Bookstore, which was established on 20 10 and is located in Xinjiang BBK Bookstore, Taixin Road, Xinjiang. The bookstore mainly sells synchronized workbooks of Xinjiang Edition of Grade Five Mathematics, including books such as Xinjiang Edition of Grade Five Mathematics. Xinjiang Uygur Autonomous Region, referred to as Xinjiang for short, is located in the northwest border of China, with Urumqi as the capital, and is one of the five minority autonomous regions in China.