Xuzhou mathematics one-on-one tutoring textbook is good. Xuzhou is one of the Kyushu in Chinese culture. There is only Xuzhou in the sea, Dai and Huai. According to legend, when Dayu controlled the water, he divided the world into Kyushu, and Xuzhou was one of the Kyushu in Xia and Shang Dynasties. As a geographical area, Xuzhou is located in the north of Huaihe River, south of Mount Tai and west of Yellow Sea, involving northern Jiangsu, northern Anhui and southern Shandong, with red clay as the main material. According to Shangshu Gong Yu, there is only Xuzhou in the sea, Dai and Huai. Huai, Yi, Meng, Yu's skill, Xiao Ye is a pig, and the East is flat. The earth is covered with red graves and the vegetation is gradually wrapped. Juetian is above average, and Juefu is above average. Jue Gong only has five-color soil, feathers in summer, solitary tung in Fuyang, floating in Sibin, pearls and fish in Huai Yi. This is just a mystery. Floating in Huaihe River and Sihe River.