BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 203 49.2%
2 United States 125 30.3%
3 Germany 36 8.7%
4 Netherlands 18 4.4%
5 Russia 7 1.7%
6 Ireland 4 1%
7 Hong Kong 3 0.7%
8 Taiwan 3 0.7%
9 Sweden 2 0.5%
10 United Kingdom 2 0.5%
11 Finland 2 0.5%
12 Libya 2 0.5%
13 Canada 2 0.5%
14 Indonesia 2 0.5%
15 India 1 0.2%
16 Ukraine 1 0.2%