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 73 44.2%
2 China 26 15.8%
3 United Kingdom 20 12.1%
4 Russia 16 9.7%
5 Germany 11 6.7%
6 France 5 3%
7 Taiwan 4 2.4%
8 Senegal 3 1.8%
9 Canada 2 1.2%
10 Estonia 2 1.2%
11 Finland 2 1.2%
12 Moldova, Republic of 1 0.6%