This text is based on expectancy theory and motivation-hygiene theory, and makes exploration research and analyses on motivation factors of salary.

本文根据期望理论及保健激励理论，对固定薪酬和浮动薪酬的激励因素作探索性研究分析。

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School space provided an entry point for the reveal of the structure of the school hygiene theory; and the practice of school space itself became the object of the expression.

学校空间不仅为学校卫生学等知识理论构型的揭露提供了切入点，而且学校空间的实践自身也组成了言说的对象。

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A "Worm vs. Wealth" theory is the Yang to the Yin of the Hygiene Hypothesis: Maybe we need more exposure to parasites to balance our reduced exposure to bacteria and viruses.

“蠕虫和富裕”理论是“卫生假说”的阴阳两个方面。也许我们真该多接触点寄生虫，来平衡一下我们越来越少接触细菌和病毒的状况。

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There is a theory, called the "hygiene hypothesis", backed by Dr Djukanovic, which suggests measures such as the overzealous cleaning of houses has meant immune systems lack practice fighting bacteria and viruses.

BBC: Asthma vaccine hope