The standard t test has been performed with various data groups to compare and study the differences.

用多重比较T法进行了差别检验，和比较研究。

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The aim of this thesis is to compare and study the differences of phatic language between English and Chinese.

本论文旨在对比研究应酬语在英汉语中的区别。

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Objective To compare and study the practical value of pulmonary large and small no dules under ct guided needle biopsy.

目的比较研究CT引导穿刺活检对肺内不同大小结节诊断的应用价值。

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Unlike earlier research, which often used video clips or other methods to simulate crimes and witnesses, the Illinois study was the first and only one to compare the two methods in the field using actual cases.

ECONOMIST: A controversy over how to handle eyewitnesses

Glaxo conducted another study that did compare Actos and Avandia in another database and found no difference.

FORBES: Magazine Article

To be included, a study had to compare organic and conventional planting across similarly-sized areas, had to report on the sample size and error margins, and had to use organic methods that complied with the guidelines of certification organisations (such as the UK's Soil Association).

BBC: Food: Organic growth?