Long-term accumulation and rich experience. According to the query of relevant information, Peanut Thirteen has long been engaged in teaching and research work on practical tests, accurately grasps the ideas for solving problems in practical tests, breaks traditional concepts, and integrates various parts of practical tests into a whole with innovative teaching thinking. Peanut Thirteen is named Zhang Qingguo. The chief research and coaching expert of Sihai Education and the first person in Liaoning to take the test.