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 22 28.2%
2 China 21 26.9%
3 United Kingdom 10 12.8%
4 Russia 6 7.7%
5 France 4 5.1%
6 Canada 3 3.8%
7 Ukraine 2 2.6%
8 Netherlands 2 2.6%
9 Poland 1 1.3%
10 Singapore 1 1.3%
11 Germany 1 1.3%
12 Hong Kong 1 1.3%
13 India 1 1.3%
14 Czech Republic 1 1.3%
15 Estonia 1 1.3%
16 Finland 1 1.3%