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 49 36%
2 China 38 27.9%
3 Germany 13 9.6%
4 Netherlands 7 5.1%
5 United Kingdom 5 3.7%
6 Canada 4 2.9%
7 Taiwan 3 2.2%
8 Turkey 3 2.2%
9 Nigeria 3 2.2%
10 Senegal 3 2.2%
11 Singapore 3 2.2%
12 Hong Kong 2 1.5%
13 India 1 0.7%
14 Finland 1 0.7%
15 Sweden 1 0.7%