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 298 81.6%
2 United States 27 7.4%
3 Germany 16 4.4%
4 Hong Kong 5 1.4%
5 Czech Republic 5 1.4%
6 France 5 1.4%
7 Canada 4 1.1%
8 Finland 3 0.8%
9 India 1 0.3%
10 United Kingdom 1 0.3%