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 74 32.9%
2 China 51 22.7%
3 Germany 36 16%
4 Netherlands 29 12.9%
5 Senegal 9 4%
6 India 5 2.2%
7 Ireland 5 2.2%
8 Hong Kong 4 1.8%
9 Canada 4 1.8%
10 United Kingdom 4 1.8%
11 Sweden 1 0.4%
12 Ukraine 1 0.4%
13 France 1 0.4%
14 Russia 1 0.4%