BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 154 53.1%
2 United States 74 25.5%
3 Germany 37 12.8%
4 Canada 11 3.8%
5 Ireland 4 1.4%
6 Russia 2 0.7%
7 Sweden 2 0.7%
8 United Kingdom 2 0.7%
9 France 2 0.7%
10 Armenia 1 0.3%
11 Hong Kong 1 0.3%