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 51 39.5%
2 United States 30 23.3%
3 Russia 19 14.7%
4 Netherlands 8 6.2%
5 Canada 5 3.9%
6 Australia 4 3.1%
7 Hong Kong 2 1.6%
8 France 2 1.6%
9 Serbia 2 1.6%
10 Sweden 2 1.6%
11 United Kingdom 2 1.6%
12 Germany 1 0.8%
13 Czech Republic 1 0.8%