美元霸权

原理

https://m.baidu.com/s?from=1012852y&word=%E7%BE%8E%E5%85%83%E5%A6%82%E4%BD%95%E6%94%B6%E5%89%B2%E4%B8%96%E7%95%8C%E8%B4%A2%E5%AF%8C

http://mini.eastday.com/bdmip/180406233832170.html