Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2021-03-01 Pages: 336 Publisher: East China Normal University Press The fourth edition of this series has undergone major changes in content and structure compared with the third edition.?Changes in content The content of the chemistry competition required to be mastered in the new syllabus of the national middle school chemistry competition for middle school students has increased significantly. In recent years. the author has made some original test que. Seller Inventory # NV044962