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 123 55.7%
2 United States 46 20.8%
3 Germany 18 8.1%
4 Netherlands 15 6.8%
5 France 5 2.3%
6 United Kingdom 4 1.8%
7 Sweden 2 0.9%
8 Czech Republic 2 0.9%
9 Ghana 2 0.9%
10 India 2 0.9%
11 Philippines 1 0.5%
12 Canada 1 0.5%