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 51 31.9%
2 China 30 18.8%
3 United Kingdom 26 16.2%
4 Russia 16 10%
5 Germany 15 9.4%
6 France 6 3.8%
7 Ukraine 5 3.1%
8 United Arab Emirates 3 1.9%
9 Taiwan 3 1.9%
10 Canada 2 1.2%
11 Estonia 1 0.6%
12 Trinidad and Tobago 1 0.6%
13 Poland 1 0.6%