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我们使用北京师范大学编写的四年制初中生物教材已经5年了。在使用《生物》第一册的过程中,对其中两个实验进行了改进,收到了较原实验方案更好的效果。
We have been using the four-year junior high school biology textbook written by Beijing Normal University for 5 years. In the course of using the first volume of “Biology”, two of these experiments were improved and received better results than the original experimental scheme.