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 181 62.6%
2 United States 46 15.9%
3 Germany 42 14.5%
4 Canada 3 1%
5 Russia 3 1%
6 Taiwan 3 1%
7 Sweden 2 0.7%
8 Netherlands 2 0.7%
9 Hong Kong 2 0.7%
10 France 2 0.7%
11 Ireland 1 0.3%
12 Singapore 1 0.3%
13 United Kingdom 1 0.3%