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 190 51.4%
2 United States 67 18.1%
3 Netherlands 42 11.4%
4 Germany 36 9.7%
5 Canada 15 4.1%
6 Hong Kong 4 1.1%
7 Russia 4 1.1%
8 United Kingdom 3 0.8%
9 Sweden 2 0.5%
10 Taiwan 2 0.5%
11 Norway 2 0.5%
12 Slovenia 1 0.3%
13 Ireland 1 0.3%
14 Luxembourg 1 0.3%