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 44 29.1%
2 China 28 18.5%
3 Germany 26 17.2%
4 Sweden 20 13.2%
5 Netherlands 12 7.9%
6 Korea, Republic of 9 6%
7 Canada 4 2.6%
8 Singapore 4 2.6%
9 France 3 2%
10 Russia 1 0.7%