BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 45 47.4%
2 China 24 25.3%
3 Germany 9 9.5%
4 Hong Kong 6 6.3%
5 Korea, Republic of 2 2.1%
6 Ecuador 2 2.1%
7 France 2 2.1%
8 Canada 2 2.1%
9 Senegal 2 2.1%
10 Russia 1 1.1%