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在最近出版的七年级物理课本中,所下的电压定义是建立在电能的基礎之上的§94)。课本中这种新办法是值得擁護的,因为它终於结束了那种以对比来介绍这一学生很难理解的概念的方法。在我所著的教学法一书中(19
In the recently published seventh-year physics textbook, the definition of voltage is based on §94). This new approach in the textbook is worth the support, because it has finally put an end to the contrast to introduce the concept of a difficult to understand students approach. In my teaching method (19