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 37 34.9%
2 Germany 19 17.9%
3 Egypt 18 17%
4 Canada 14 13.2%
5 China 7 6.6%
6 France 5 4.7%
7 United Kingdom 2 1.9%
8 Czech Republic 1 0.9%
9 Hong Kong 1 0.9%
10 Netherlands 1 0.9%
11 Russia 1 0.9%