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 56 35%
2 China 32 20%
3 United Kingdom 29 18.1%
4 Russia 13 8.1%
5 Germany 10 6.2%
6 France 6 3.8%
7 Taiwan 5 3.1%
8 Senegal 3 1.9%
9 Ukraine 2 1.2%
10 Canada 2 1.2%
11 Czech Republic 1 0.6%
12 Estonia 1 0.6%