BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 95 51.1%
2 China 53 28.5%
3 Germany 15 8.1%
4 United Kingdom 7 3.8%
5 France 5 2.7%
6 Taiwan 4 2.2%
7 Canada 3 1.6%
8 Russia 2 1.1%
9 Georgia 1 0.5%
10 Czech Republic 1 0.5%