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 United States 72 47.7%
2 China 48 31.8%
3 Germany 14 9.3%
4 India 7 4.6%
5 France 3 2%
6 Netherlands 2 1.3%
7 Russia 2 1.3%
8 United Kingdom 2 1.3%
9 Canada 1 0.7%