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 19 25%
2 United States 17 22.4%
3 China 14 18.4%
4 Germany 11 14.5%
5 France 5 6.6%
6 Norway 5 6.6%
7 United Kingdom 2 2.6%
8 Russia 1 1.3%
9 Taiwan 1 1.3%
10 Canada 1 1.3%