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 China 19 41.3%
2 United States 12 26.1%
3 Canada 6 13%
4 Hong Kong 3 6.5%
5 Sweden 2 4.3%
6 United Kingdom 2 4.3%
7 Netherlands 1 2.2%
8 Germany 1 2.2%