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 60 39.7%
2 China 43 28.5%
3 Germany 13 8.6%
4 Canada 12 7.9%
5 Netherlands 9 6%
6 Sweden 7 4.6%
7 Korea, Republic of 3 2%
8 United Kingdom 2 1.3%
9 Russia 1 0.7%
10 India 1 0.7%