BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 288 65.5%
2 United States 64 14.5%
3 Germany 39 8.9%
4 Canada 14 3.2%
5 Russia 7 1.6%
6 Hong Kong 5 1.1%
7 Taiwan 4 0.9%
8 Netherlands 4 0.9%
9 Nigeria 3 0.7%
10 Ireland 3 0.7%
11 Finland 2 0.5%
12 United Kingdom 2 0.5%
13 Turkey 1 0.2%
14 Norway 1 0.2%
15 Romania 1 0.2%
16 Croatia 1 0.2%
17 Japan 1 0.2%