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 China 60 44.8%
2 United States 27 20.1%
3 Germany 21 15.7%
4 Netherlands 6 4.5%
5 Sweden 6 4.5%
6 Philippines 3 2.2%
7 Peru 2 1.5%
8 Colombia 2 1.5%
9 United Kingdom 2 1.5%
10 Singapore 2 1.5%
11 Brazil 1 0.7%
12 Bulgaria 1 0.7%
13 Russia 1 0.7%