Is that some animals organ of the body with prominent economic value, thus become the object of human plunder, become the main factors of extinct animals.

就是因为有些动物身上的器官具有突出的经济价值，由此成为被人类掠夺利用的对象，成为动物灭绝的主要因素。

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To study the clinical decisions and health policies from decision main body, influencing factors, decision process, information feedback, and the circulation pathways of relationship adjusting.

研究了临床决策与卫生政策的决策主体、影响因素、决策过程、信息反馈、关系调整的循环路径；

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The reasons for sports injury are often the combination of many factors, and the main factors consist of lack of warming-up, poor body function, and unreasonable application of tactics.

发生运动损伤的原因往往是多方面因素的结合，准备活动不足、身体机能不良、技战术运用不合理是诱发运动损伤的主要原因。

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