BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 United States 36 31.6%
2 China 23 20.2%
3 Netherlands 9 7.9%
4 France 9 7.9%
5 Sweden 9 7.9%
6 Norway 7 6.1%
7 Denmark 4 3.5%
8 Finland 4 3.5%
9 Germany 4 3.5%
10 Ireland 2 1.8%
11 Italy 2 1.8%
12 Switzerland 2 1.8%
13 United Kingdom 2 1.8%
14 Moldova, Republic of 1 0.9%