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 75 36.2%
2 China 30 14.5%
3 Germany 29 14%
4 Netherlands 29 14%
5 Russia 16 7.7%
6 Czech Republic 14 6.8%
7 Finland 3 1.4%
8 France 2 1%
9 Sweden 2 1%
10 United Kingdom 2 1%
11 Korea, Republic of 2 1%
12 Hong Kong 1 0.5%
13 Australia 1 0.5%
14 Canada 1 0.5%