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
1 102 35.7%
2 United States 85 29.7%
3 China 47 16.4%
4 Germany 20 7%
5 France 14 4.9%
6 Czech Republic 5 1.7%
7 Canada 3 1%
8 Norway 3 1%
9 United Kingdom 2 0.7%
10 India 2 0.7%
11 Japan 1 0.3%
12 Mexico 1 0.3%
13 Philippines 1 0.3%