According to Baidu Encyclopedia, Ding Xin Middle School is a middle school in Qihe County, Dezhou City. According to Baidu Library, the academic system in Texas is six or three years, three years in junior high school and six years in primary school. Junior high school English is a foreign research edition, and people's education edition is Chinese, politics and history. Mathematics, physics, chemistry, biology and geography are from Shandong Education Press. It can be seen that the textbook version of middle schools in Ding Xin depends on the specific subjects.