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 246 59%
2 United States 93 22.3%
3 Germany 38 9.1%
4 Canada 14 3.4%
5 Ireland 5 1.2%
6 France 4 1%
7 United Kingdom 4 1%
8 Senegal 3 0.7%
9 Singapore 2 0.5%
10 Hong Kong 2 0.5%
11 Kazakhstan 2 0.5%
12 Netherlands 2 0.5%
13 Russia 2 0.5%