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 45 40.2%
2 United States 34 30.4%
3 Germany 12 10.7%
4 Senegal 6 5.4%
5 Netherlands 5 4.5%
6 Canada 3 2.7%
7 Portugal 1 0.9%
8 Russia 1 0.9%
9 Sweden 1 0.9%
10 Taiwan 1 0.9%
11 Hong Kong 1 0.9%
12 Ireland 1 0.9%
13 Finland 1 0.9%