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以“退”为“进”是解决某些物理问题的有效策略,本文通过例题分析,希望能对师生解题能力提升起到积极作用.
Taking “Refunding ” as “entering ” is an effective strategy to solve some physical problems. Through the analysis of examples, this paper hopes to play an active role in improving the ability of teachers and students to solve problems.