各个时期的国家制度与政策对此发挥了关键作用，显示出人类社会经济行为对于环境变迁的影响。
The factors in system and policy played the key part in this course, which influenced the degree of environmental changes by human action for society or economy.
目的探讨影响医院经济效益的主要院内相关因素及其作用方向与幅度。
Objective To study the main interior factors and its affected direction and extent of influencing hospital economic benefit.
利率对经济生活的影响是巨大和多方面的，对宏观经济运行与微观经济活动都有着极其重要的调节作用。
Interest rate has enormous and various effect on the economic life, which is a conditioner to both the macro economic circulation and the micro economic function.
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