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 China 23 29.5%
2 United States 17 21.8%
3 Netherlands 12 15.4%
4 Germany 7 9%
5 United Kingdom 6 7.7%
6 Hong Kong 5 6.4%
7 France 4 5.1%
8 Taiwan 2 2.6%
9 Russia 1 1.3%
10 Estonia 1 1.3%