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 59 31.4%
2 China 31 16.5%
3 Sweden 26 13.8%
4 Germany 25 13.3%
5 Netherlands 20 10.6%
6 Korea, Republic of 12 6.4%
7 Canada 11 5.9%
8 Algeria 2 1.1%
9 Russia 2 1.1%