Research on the influence of social capltal on farmer·technological entrepreneurship 并列题名:Research on the influence of social capltal on farmer·technological entrepreneurship Research on the influence of social capital on financial credit in rural area 并列题名:Research on the influence of social capital on financial credit in rural area Research on the influence of environmental regulation on industrial Ecological efficiency Research on information service mechanism for returning home entrepreneurship Research on the external support system of university students' entrepreneurship Research on the theory of necessity-driven entrepreneurship