1, Beijing Edition: refers to the textbook version published by Beijing Publishing House, which is mainly used in Beijing.
2. Hebei Education Edition: refers to the textbook edition published by the publishing house for Hebei Education Publishing House, which is mainly used in Hebei area.
3. East China Normal University Edition: refers to the textbook edition published by the publishing house for East China Normal University Press, which is mainly used in East China.
4. Science Publishing House Edition: refers to the textbook edition published by the publishing house for science publishing house, which is mainly used nationwide.