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 74 37.9%
2 United States 58 29.7%
3 Germany 24 12.3%
4 Netherlands 14 7.2%
5 Japan 4 2.1%
6 Sweden 4 2.1%
7 Philippines 3 1.5%
8 Brazil 3 1.5%
9 Canada 3 1.5%
10 India 2 1%
11 Singapore 2 1%
12 Taiwan 1 0.5%
13 United Kingdom 1 0.5%
14 Russia 1 0.5%
15 France 1 0.5%