因此，体育课的教学效果如何，关键在于教师形体语言的运用是否规范、准确、及时、合理。
E teaching words. Therefore, whether the teacher's figure language can be used standardly, exactly, timely and reasonably keys to the teaching effect of P. e.
教学语言除了要规范、准确、清晰、有条理外，还要适应学科的特点。
Besides standard, accuracy, distinctness and orderliness, teaching language should also fit in with the characteristics of the subject.
解决问题的关键在于如何定义一种规范化的方法，用于在程序设计语言中准确地实现UML二元关系。
The key part of the solution to this problem lies in how to define a normalization method to implement UML binary relationships precisely in programming languages.
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