Ten copies. Official website, Education Bureau of Yantai City, Shandong Province, inquired that as of June 26th, 2022, the new senior high school in Yantai City, Shandong Province had five textbooks of Chinese mathematics, English and physical chemistry, the first textbook of People's Education Edition, the Chinese mathematics, physics+foreign language edition, English +Luco edition, and the first compulsory book of science, with five books and ten books. Yantai, a prefecture-level city under the jurisdiction of Shandong Province, is one of the central cities of Shandong Peninsula, an important port city around Bohai Sea and a national historical and cultural city.