Some problems occurred to Shanghai during the development of security line for minimum subsistence.

最低生活保障线在上海的发展与其建设小康社会同步,其中面临的具体问题不少.

Methods 445 people living on minimum subsistence allowances in Xuzhou were selected by the method of systematic and cluster sampling with face to face inquiry and household survey.

方法采用系统和整群抽样的方法抽取徐州市低保人员445人，以面对面询问方式进行入户调查。