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 29 30.5%
2 China 23 24.2%
3 United Kingdom 17 17.9%
4 Russia 9 9.5%
5 Estonia 4 4.2%
6 France 3 3.2%
7 Czech Republic 2 2.1%
8 India 2 2.1%
9 Moldova, Republic of 2 2.1%
10 Canada 2 2.1%
11 Germany 1 1.1%
12 Hong Kong 1 1.1%