鉴于对数转换的缺点，本研究提出一种非转换方法，即背景校正后直接进行数据标准化。
A method proposed in this paper avoids the log-transformation in view of its drawbacks, specially the log-ratio transformation, but normalizes the data after background correction.
第一章主要介绍本研究提出的背景，本研究的思路、主要研究内容和意义价值等。
Chapter One is Introductions, in which the backgrounds, aims and values of this study are introduced, and the methodologies are discussed.
概述了职业倦怠提出的背景，描述并分析了我国教师职业倦怠的的现状，阐述了本研究的理论价值与实践价值。
It summaries the studying background of "burnout", describes and analyses the recent conditions of "burnout" of teachers, expatiates the theoretical and practical worthiness.
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