1223444
http://nianjian.******/tags.php?/%E9%BB%91%E9%BE%99%E6%B1%9F%E5%AF%B9%E5%A4%96%E7%BB%8F%E6%B5%8E%E8%B4%B8%E6%98%93%E5%B9%B4%E9%89%B4/1/13397898834/

他们网站上说：“BACI is available for researchers already subscribing to the United Nations COMTRADE database. Users of BACI have to testify that their organization or themselves have an active UN Comtrade subscription to download BACI. ”

你有United Nations COMTRADE账号吗？没有，就去注册一个吧。说明在这里：https://bbs.pinggu.org/thread-2962949-1-1.html

谢谢，我注册了一个账号，但还是不行，说连接错误