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正确解答物理问题,关键是找准物理关系,前提是搞清题目所述的物理现象或物理过程。然而,不少书刊对这个正确解题的首要问题却不乏疏忽之处。下面仅从最近出版的书刊中拾举两例。
The key to correctly answering physical problems is to find out the physical relationship. The premise is to find out the physical phenomena or physical processes described in the topic. However, many books and publications have negligence on the primary issue of this correct solution. The following only picks up two cases from recently published books.