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 34 30.4%
2 China 30 26.8%
3 Germany 14 12.5%
4 United Kingdom 10 8.9%
5 Russia 7 6.2%
6 Netherlands 4 3.6%
7 France 4 3.6%
8 Japan 2 1.8%
9 Philippines 1 0.9%
10 Poland 1 0.9%
11 Canada 1 0.9%
12 Czech Republic 1 0.9%
13 Finland 1 0.9%
14 Taiwan 1 0.9%
15 Ukraine 1 0.9%