基于这样的认识，在2005年的暑假，对吉林省德惠、榆树4个村200户农民就有关农民分化问题进行了问卷调查。
According to this understanding , during the summer vacation in 2005 , four villages with 200 peasants household were investigated to carry on a questionnaire for the relevant peasantry diversification in Jilin dehui , yushu .
榆树村