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新学期第一节物理课上，班上有几个新转来的同学不知道课程进度，于是举手问道：“老师，这学期我们学哪几本书呢？”


　　老师说：“《光学》、《近代物理》。”


　　大家都兴奋不已，说这学期内容好少啊！然后纷纷扔掉了《光学》。

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