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ISBN 10: 7305081922ISBN 13: 9787305081927
Da: liu xing, Nanjing JiangSu, JS, Cina
Libro
paperback. Condizione: New. Paperback. Pub Date: 2011 Pages: 151 in Publisher: Nanjing University Press Books from the first grade to sixth grade. comprehensive system of difficulty moderate level of clarity. reasonable schedule. According to the learning content for different grade levels. from easy to difficult. layers of depth. spiral. Write on and strive to reflect the following characteristics: (1) from the foundation to deepen the teaching materials. The all grades closely Outline close to the textbook. From the r.