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 57 37.7%
2 China 52 34.4%
3 United Kingdom 17 11.3%
4 Russia 8 5.3%
5 Estonia 3 2%
6 Finland 2 1.3%
7 India 2 1.3%
8 Netherlands 2 1.3%
9 Taiwan 2 1.3%
10 Nigeria 1 0.7%
11 Poland 1 0.7%
12 Latvia 1 0.7%
13 France 1 0.7%
14 Germany 1 0.7%
15 Hong Kong 1 0.7%