BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 Canada 4 28.6%
2 United States 3 21.4%
3 United Kingdom 2 14.3%
4 China 1 7.1%
5 Finland 1 7.1%
6 Germany 1 7.1%
7 Hong Kong 1 7.1%
8 Lao People's Democratic Republic 1 7.1%