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 206 44.6%
2 United States 173 37.4%
3 Germany 35 7.6%
4 Canada 26 5.6%
5 Singapore 3 0.6%
6 Sweden 3 0.6%
7 Taiwan 3 0.6%
8 India 3 0.6%
9 Uzbekistan 3 0.6%
10 Russia 2 0.4%
11 United Kingdom 2 0.4%
12 United Arab Emirates 1 0.2%
13 1 0.2%
14 Czech Republic 1 0.2%