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 94 46.1%
2 United States 60 29.4%
3 Sweden 9 4.4%
4 France 8 3.9%
5 Korea, Republic of 8 3.9%
6 Netherlands 7 3.4%
7 Senegal 6 2.9%
8 Germany 4 2%
9 India 3 1.5%
10 Russia 1 0.5%
11 Bangladesh 1 0.5%
12 Canada 1 0.5%
13 Singapore 1 0.5%
14 Switzerland 1 0.5%