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 37 25.5%
2 Sweden 35 24.1%
3 China 35 24.1%
4 Germany 12 8.3%
5 Netherlands 11 7.6%
6 Korea, Republic of 5 3.4%
7 France 3 2.1%
8 Iran, Islamic Republic of 2 1.4%
9 Spain 2 1.4%
10 United Kingdom 2 1.4%
11 Canada 1 0.7%