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生物学是一门以实验为基础的学科,实验教学在课堂教学中占有极其重要的地位。演示实验是教师课堂教学常用的方法,其特点是操作简便,现象明显,具有较强的直观性与示
Biology is an experiment-based discipline. Experimental teaching plays an extremely important role in classroom teaching. Demonstration experiment is a common method used by teachers in classroom teaching. It is characterized by simple operation, obvious phenomena, and strong intuitiveness and display.