求翻译：选取我院2008级临床医学专业学生100人，年龄18-21岁，均为五年制本科生。其中50人作为实验组，在传统实践教学模式基础上加入预实习模式。其中50人作为对照组，按照传统实践教学模式执行教学。是什么意思？

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Choose My House at 2008 clinical medical students 100 persons, aged 18 to 21 years of age, are 5-year undergraduate students. 50 of whom as a lab group, the traditional practice teaching model based on pre-training mode. 50 of whom as a comparison group, in accordance with traditional practice teach

Selects my courtyard 2008 level of clinical medicine specialized student 100 people, the age 18-21 year old, is five year system undergraduate students.50 people take the experimental group, joins the pre-practice pattern in the traditional practice educational model foundation.50 people take the co

Select 2008 100 students of clinical medicine in our hospital, aged 18-21 years, were five-year undergraduate student. 50 of them as the experimental group, in the traditional mode of practice teaching mode based on practice. 50 of them served as the control group, according to the traditional pract

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