BPG致力于知识的发现和传播
Total Visits of This Article
2023 | 总访问次数
排名 国家/地区 数量 占比
1 China 43 29.9%
2 United States 30 20.8%
3 Germany 28 19.4%
4 Russia 25 17.4%
5 Sweden 8 5.6%
6 Korea, Republic of 5 3.5%
7 Netherlands 2 1.4%
8 France 2 1.4%
9 Ukraine 1 0.7%