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 35 36.5%
2 Germany 16 16.7%
3 Netherlands 13 13.5%
4 China 12 12.5%
5 France 7 7.3%
6 Taiwan 3 3.1%
7 United Kingdom 2 2.1%
8 Russia 2 2.1%
9 Czech Republic 2 2.1%
10 Hong Kong 2 2.1%
11 Norway 1 1%
12 Canada 1 1%