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为了解黑龙江省桦南县庆发村肠道寄生虫感染状况，我们于2002-03-25~2002-03-29对500例村民进行了检测，现将结果报道如下。 1 对象与方法 1.1 检测对象 黑龙江省佳木斯市桦南县庆发村500例村民，其中男265例，女235例。以“户”为单位进行登记编号。后二位数字为家庭成员编?
In order to understand the status of intestinal parasites in Qingfa Village, Huanan County, Heilongjiang Province, 500 villagers were tested from 2002-03-25 to 2002-03-29. The results are reported as follows. 1 Subjects and methods 1.1 Detection object Jiamusi City, Heilongjiang Province Huanan County village of 500 villagers, including 265 males and 235 females. To “household” as the registration number. The last two digits are for family members?