Chapter Four is a case study on the changes of literary concepts.

第四章是关于文学观念变迁的两个个案研究。

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Objective:In order to study on the changes in structures and cast form of vertebral canal during rotatory manipulations.

目的：探讨旋转手法对颈椎管内解剖结构和容积变化的影响。

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This paper presents a two-year longitudinal study on the changes in students 'english learning motivation and motivation intensity.

结合量和质的研究方法，本文分析了两年以来非英专学生的英语学习动机及动机强度变化的曲线。

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This week, we will tell about a study linking activity on the sun to changes in Earth's climate.

VOA: special.2009.09.29

Dinaburg said he became interested in this topic last year at Black Hat when a friend, Robert Edmonds, and Paul Vixie presented on a study of changes observed within the domain name system (DNS).

FORBES: Bitsquatting: Machine-Garbled Internet Connections

The survey indicates that one-third to one-half of businesses possessing a healthy knowledge of the requirements of Obamacare (knowledge provided to those participating in the study by McKinsey) would give up on or make major changes to their employee health benefit programs as a result of the economic responsibilities the law will place on them.

FORBES: McKinsey's Anti-Obamacare Study May Be A Lie - But It's A Lie Worth Big Bucks To McKinsey

But the government said the report had been based on a National Audit Office study which focused on "very early days" in the service, since when significant changes and a "marked improvement" had been made.

BBC: Prison education scheme 'failed'