Examination is the main way to check the teaching and study effect.

考核是检验教学与学习效果的主要手段。

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The foreign language study is greatly influenced by many kinds of factors, while the emotional factors play important roles in the study effect.

影响外语学习的因素多种多样，而情感因素对学习效果起着至关重要的作用。

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Objective: To study effect of various arrhythmias of pregnancy in clinic.

目的：探讨临床各种心律失常对妊娠的影响。

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A new study has found the strongest evidence yet that smoke-free laws can reduce a major effect of tobacco smoking - heart disease.

VOA: special.2009.01.07

To sort out the confusion, Hashibe and her colleagues used statistical techniques to, in effect,make one big study out of the previous smaller studies.

VOA: standard.2010.06.30

In order to study this effect more carefully, the Japanese researchers performed three experiments.

FORBES: Want To Be More Focused? Look At Pictures Of Cute Baby Animals

Honey Langcaster-James, a psychologist who specialises in celebrity behaviour, said so few people achieved star status that it made it difficult to scientifically study the effect on people's lives.

BBC: Fame may 'lead to a shorter life'

Britain's Treasury recently commissioned a study on the effect of high-frequency traders on markets.

ECONOMIST: The post mortem into the stockmarket slide of May 6th