3http://edu.cnki.net/INDEX.HTM ysjs/ysjs 圣典图书
http://cnlib.lib.tsinghua.edu.cn/index/index.jsp shfj/shfj
中经统计数据网
http://cedb.cei.gov.cn bnulib/bnulib 国图
http://210.37.32.21:8080/ly/test_1.jsp?s=1 http://202.196.100.12:8080/ly/test_1.jsp?s=1 http://210.43.39.3:8080/ly/test_1.jsp 30万册的超星新图书馆 http://211.84.227.2/ 上海教育网络数字图书馆
http://202.120.96.59/book.asp 代理202.120.142.68:3128@HTTP