BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 United States 18 27.3%
2 China 14 21.2%
3 Netherlands 13 19.7%
4 Sweden 9 13.6%
5 Canada 3 4.5%
6 Germany 3 4.5%
7 Japan 2 3%
8 Czech Republic 2 3%
9 Switzerland 2 3%