采用小组访谈方法，分两组对干部进行调查。
Two groups discussions were conducted in countryside family planning cadres in Fujian province.
方法：74例缺血性心脏病稳定性心绞痛患者，随机分两组。
Methods: 74 patients of stable angina pectoris were divided in to two groups by chance.
接下来有很多游戏，所以我们分两组，每组十个学生和三位老师。
Then there is a lot of games, so we divided into two groups, each group of ten students and three teachers.
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