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物理教学大纲指出:"物理教学要以观察、实验为基础。进行演示和学生实验,能够使学生对物理事实获得具体的明确的认识,这种认识是理解物理概念和
The syllabus of physics points out that: “Physical teaching should be based on observation and experimentation. Demonstration and student experiments can enable students to obtain a concrete and clear understanding of physical facts. This understanding is to understand the concept of physics and