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一、案例背景在一堂体育课中,准备活动虽然不是课的主要部分,但它直接关系到一堂课的质量和效果。体育课准备活动是各项体育运动的
First, the case background In a physical education class, preparation activities, though not the main part of the class, but it is directly related to the quality and effectiveness of a lesson. Physical education preparatory activities are all sports