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 55 42%
2 China 31 23.7%
3 Germany 13 9.9%
4 United Kingdom 8 6.1%
5 Russia 6 4.6%
6 France 3 2.3%
7 Canada 2 1.5%
8 Japan 2 1.5%
9 Latvia 2 1.5%
10 Netherlands 2 1.5%
11 Estonia 2 1.5%
12 Australia 1 0.8%
13 Brazil 1 0.8%
14 Philippines 1 0.8%
15 Taiwan 1 0.8%
16 Ukraine 1 0.8%