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 161 47.2%
2 United States 112 32.8%
3 Germany 35 10.3%
4 Canada 18 5.3%
5 Ireland 3 0.9%
6 Netherlands 2 0.6%
7 Russia 2 0.6%
8 France 2 0.6%
9 Sweden 2 0.6%
10 Hong Kong 1 0.3%
11 Singapore 1 0.3%
12 1 0.3%
13 Finland 1 0.3%