Liu Zengli, male, general manager of Beijing Vientiane Thinking International Education Research Center. Vientiane Thinking International Book (Beijing) Co., Ltd. is located in Tongfang Science and Technology Building, Tsinghua. It is a large-scale educational research institution and research achievement promotion enterprise based on the basic education industry, which is committed to promoting educational reform, promoting educational informatization and providing high-quality aid resources. Corporate mission: to become a provider of excellent aid resources in the field of basic education and an advocate of innovative teaching methods.