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 151 53.7%
2 United States 60 21.4%
3 Germany 33 11.7%
4 Canada 15 5.3%
5 Hong Kong 7 2.5%
6 Russia 4 1.4%
7 Belgium 2 0.7%
8 Taiwan 2 0.7%
9 Turkey 2 0.7%
10 United Kingdom 1 0.4%
11 France 1 0.4%
12 Singapore 1 0.4%
13 Sweden 1 0.4%
14 Netherlands 1 0.4%