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 China 167 61.9%
2 United States 50 18.5%
3 Germany 21 7.8%
4 Hong Kong 7 2.6%
5 Portugal 5 1.9%
6 Taiwan 4 1.5%
7 Japan 4 1.5%
8 3 1.1%
9 Austria 2 0.7%
10 Ireland 2 0.7%
11 Senegal 2 0.7%
12 Russia 1 0.4%
13 Canada 1 0.4%
14 France 1 0.4%