ISBN: 9787530339992 - 【二手旧书9成新】【正版现货】怎样解题：初中平面几何添加辅助线的方法与技巧（第6次修订版） (1 Ergebnisse)

paperback. Zustand: New. Paperback. Pub Date: 2011 03 of Pages: 222 in Publisher: Beijing Education Press series fully embodies the innovative education ideas. adhering to the teaching research from teaching. and service to the teaching of writing philosophy how to solve problem. spirit really teach students to learn how to solve problem. follow the practicality. relevance and operability principles. organized a number of special senior backbone teachers and teaching and research staff repeated research. carefully cr.…