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 225 54.9%
2 United States 104 25.4%
3 Germany 37 9%
4 Canada 11 2.7%
5 Hong Kong 8 2%
6 Taiwan 6 1.5%
7 Ireland 4 1%
8 Singapore 3 0.7%
9 Sweden 2 0.5%
10 France 2 0.5%
11 Malaysia 2 0.5%
12 Philippines 2 0.5%
13 Ukraine 2 0.5%
14 Georgia 1 0.2%
15 Switzerland 1 0.2%