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 42 47.7%
2 China 16 18.2%
3 United Kingdom 11 12.5%
4 Russia 6 6.8%
5 Poland 3 3.4%
6 Canada 2 2.3%
7 India 2 2.3%
8 Moldova, Republic of 1 1.1%
9 Czech Republic 1 1.1%
10 Estonia 1 1.1%
11 Finland 1 1.1%
12 Germany 1 1.1%
13 Hong Kong 1 1.1%