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 68 40.5%
2 China 55 32.7%
3 Germany 15 8.9%
4 France 12 7.1%
5 Hong Kong 5 3%
6 United Kingdom 5 3%
7 Senegal 4 2.4%
8 Ukraine 2 1.2%
9 Latvia 1 0.6%
10 Russia 1 0.6%