BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 35 50.7%
2 China 12 17.4%
3 Germany 7 10.1%
4 United Kingdom 6 8.7%
5 France 3 4.3%
6 Estonia 3 4.3%
7 Finland 1 1.4%
8 Hong Kong 1 1.4%
9 Russia 1 1.4%