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 144 47.4%
2 United States 77 25.3%
3 Germany 32 10.5%
4 Canada 30 9.9%
5 Sweden 3 1%
6 Netherlands 3 1%
7 Denmark 3 1%
8 Hong Kong 2 0.7%
9 United Arab Emirates 2 0.7%
10 United Kingdom 2 0.7%
11 Turkey 1 0.3%
12 Lithuania 1 0.3%
13 Russia 1 0.3%
14 Spain 1 0.3%
15 Finland 1 0.3%
16 Georgia 1 0.3%