【摘要】 通过文献法、观察法、调查法和逻辑分析法,对“自由人”规则实施以来的情况进行了分析和研究,发现“自由人”自实施以来得到了世界各队的普遍重视,以“自由人”为核心的新的整体防守体系已经形成。但对“自由人”的选材和训练研究还处于摸索状态。更多还原

【Abstract】 By using the method of literature consultation,observation,investigation and logical analysis,the state after the rule of libero is implemented is analyzed and studied in this paper,the author found that the libero has got the(general) attention of every team in the world,the new whole defense system that takes libero as the core has already came into being.But the research of selecting and training libero is still in the preliminary state.更多还原