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 43 29.1%
2 China 33 22.3%
3 United Kingdom 31 20.9%
4 Russia 15 10.1%
5 Germany 12 8.1%
6 Taiwan 5 3.4%
7 France 4 2.7%
8 Poland 2 1.4%
9 Ukraine 1 0.7%
10 India 1 0.7%
11 Estonia 1 0.7%