BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 United States 25 45.5%
2 Germany 10 18.2%
3 China 7 12.7%
4 Netherlands 5 9.1%
5 Romania 3 5.5%
6 Burkina Faso 2 3.6%
7 Hong Kong 1 1.8%
8 Singapore 1 1.8%
9 United Kingdom 1 1.8%