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 259 46.3%
2 China 166 29.7%
3 Netherlands 38 6.8%
4 Germany 37 6.6%
5 France 16 2.9%
6 Canada 8 1.4%
7 Hong Kong 8 1.4%
8 Portugal 6 1.1%
9 Taiwan 5 0.9%
10 5 0.9%
11 Senegal 3 0.5%
12 Australia 2 0.4%
13 Hungary 2 0.4%
14 Czech Republic 1 0.2%
15 Serbia 1 0.2%
16 South Africa 1 0.2%
17 United Kingdom 1 0.2%