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 196 50.4%
2 United States 50 12.9%
3 Germany 43 11.1%
4 Canada 35 9%
5 Netherlands 29 7.5%
6 Sweden 18 4.6%
7 Taiwan 4 1%
8 Czech Republic 3 0.8%
9 Hong Kong 3 0.8%
10 Ireland 3 0.8%
11 India 2 0.5%
12 United Kingdom 2 0.5%
13 Brazil 1 0.3%