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 United States 49 37.4%
2 China 41 31.3%
3 Germany 16 12.2%
4 Russia 6 4.6%
5 Senegal 3 2.3%
6 Netherlands 3 2.3%
7 France 3 2.3%
8 India 2 1.5%
9 Norway 2 1.5%
10 Argentina 2 1.5%
11 United Kingdom 2 1.5%
12 Philippines 1 0.8%
13 Ukraine 1 0.8%