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 75 36.6%
2 China 74 36.1%
3 Netherlands 16 7.8%
4 Germany 12 5.9%
5 Korea, Republic of 7 3.4%
6 Senegal 6 2.9%
7 Hong Kong 4 2%
8 Canada 3 1.5%
9 Taiwan 2 1%
10 United Kingdom 1 0.5%
11 Sweden 1 0.5%
12 1 0.5%
13 Finland 1 0.5%
14 Japan 1 0.5%
15 Portugal 1 0.5%