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 Netherlands 21 25.6%
2 United States 21 25.6%
3 Germany 14 17.1%
4 China 7 8.5%
5 France 6 7.3%
6 Russia 4 4.9%
7 Canada 3 3.7%
8 Switzerland 2 2.4%
9 Taiwan 2 2.4%
10 Czech Republic 1 1.2%
11 India 1 1.2%