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 77 37.9%
2 China 52 25.6%
3 Germany 15 7.4%
4 France 14 6.9%
5 Hong Kong 12 5.9%
6 United Kingdom 7 3.4%
7 Malaysia 6 3%
8 Kazakhstan 4 2%
9 Netherlands 3 1.5%
10 Russia 3 1.5%
11 Senegal 3 1.5%
12 Taiwan 2 1%
13 Israel 2 1%
14 Japan 1 0.5%
15 Latvia 1 0.5%
16 Spain 1 0.5%