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 266 68%
2 United States 60 15.3%
3 Germany 34 8.7%
4 Canada 12 3.1%
5 Russia 4 1%
6 Viet Nam 3 0.8%
7 Sweden 2 0.5%
8 Mexico 2 0.5%
9 Austria 2 0.5%
10 Australia 1 0.3%
11 India 1 0.3%
12 Croatia 1 0.3%
13 Finland 1 0.3%
14 France 1 0.3%
15 United Kingdom 1 0.3%