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 China 77 32.9%
2 67 28.6%
3 United States 47 20.1%
4 Germany 16 6.8%
5 France 11 4.7%
6 Europe 5 2.1%
7 Canada 3 1.3%
8 United Kingdom 2 0.9%
9 Norway 2 0.9%
10 Philippines 1 0.4%
11 Czech Republic 1 0.4%
12 India 1 0.4%
13 Korea, Republic of 1 0.4%