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 United States 27 27.6%
2 China 24 24.5%
3 Germany 14 14.3%
4 Sweden 7 7.1%
5 Taiwan 7 7.1%
6 India 6 6.1%
7 Ireland 6 6.1%
8 Netherlands 2 2%
9 Ukraine 2 2%
10 Canada 2 2%
11 Russia 1 1%