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
1 264 84.6%
2 United States 20 6.4%
3 United Kingdom 8 2.6%
4 Canada 7 2.2%
5 China 7 2.2%
6 Germany 2 0.6%
7 Hong Kong 1 0.3%
8 Korea, Republic of 1 0.3%
9 Lao People's Democratic Republic 1 0.3%
10 Finland 1 0.3%