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 71 36.2%
2 United States 60 30.6%
3 Germany 24 12.2%
4 Netherlands 15 7.7%
5 Russia 6 3.1%
6 Sweden 6 3.1%
7 Philippines 4 2%
8 Canada 3 1.5%
9 Taiwan 2 1%
10 United Kingdom 2 1%
11 Singapore 2 1%
12 France 1 0.5%