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 60 42%
2 United States 29 20.3%
3 Netherlands 25 17.5%
4 Germany 14 9.8%
5 France 7 4.9%
6 India 2 1.4%
7 Russia 2 1.4%
8 United Kingdom 1 0.7%
9 Czech Republic 1 0.7%
10 Belgium 1 0.7%
11 Canada 1 0.7%