BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 United States 18 38.3%
2 China 17 36.2%
3 France 3 6.4%
4 Canada 3 6.4%
5 India 2 4.3%
6 Philippines 1 2.1%
7 Bolivia, Plurinational State of 1 2.1%
8 Germany 1 2.1%
9 Hong Kong 1 2.1%