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 81 37.9%
2 China 54 25.2%
3 Germany 27 12.6%
4 Netherlands 16 7.5%
5 Sweden 7 3.3%
6 Philippines 6 2.8%
7 United Kingdom 5 2.3%
8 Korea, Republic of 4 1.9%
9 Taiwan 4 1.9%
10 France 3 1.4%
11 Russia 2 0.9%
12 Ireland 2 0.9%
13 Israel 1 0.5%
14 Australia 1 0.5%
15 Canada 1 0.5%