最近看到几篇文章都提到这个database，请问板上的大侠这是什么数据库，在哪可以下载

The data base is taken from the Urban Socio-Economic Survey Organization,
National Bureau of Statistics (NBS) in China. This is a national uniform survey
conducted in every province in China. The main content of the survey includes detailed
household demographic information, cash flow, quantities and expenditures of major
commodities purchased in the market, the employment of each household member, yearend
housing condition and the ownership of durable goods. In total, there are 1,548
variables describing each household.

多谢啦！！！！