http://www.bloomberg.com/news/articles/2016-01-18/the-north-dakota-crude-oil-that-s-worth-less-than-nothing
http://www.bloomberg.com/news/articles/2016-01-18/the-north-dakota-crude-oil-that-s-worth-less-than-nothing
北达科他不叫北卡吧。。。xmlzj
xmlzj
对喔。突然发现原来这州没中文缩写。