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 72 36.2%
2 China 71 35.7%
3 Germany 13 6.5%
4 Russia 12 6%
5 Netherlands 9 4.5%
6 Hong Kong 5 2.5%
7 Ireland 5 2.5%
8 Taiwan 3 1.5%
9 United Kingdom 2 1%
10 France 2 1%
11 Portugal 1 0.5%
12 Israel 1 0.5%
13 Kazakhstan 1 0.5%
14 Sweden 1 0.5%
15 Belgium 1 0.5%