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 41 30.4%
2 United States 37 27.4%
3 Germany 14 10.4%
4 Netherlands 10 7.4%
5 United Kingdom 10 7.4%
6 Hong Kong 6 4.4%
7 Portugal 5 3.7%
8 Taiwan 4 3%
9 Senegal 3 2.2%
10 Switzerland 2 1.5%
11 Russia 1 0.7%
12 Korea, Republic of 1 0.7%
13 Canada 1 0.7%