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 United States 53 44.9%
2 China 21 17.8%
3 France 9 7.6%
4 Germany 7 5.9%
5 India 7 5.9%
6 United Kingdom 6 5.1%
7 Netherlands 4 3.4%
8 Russia 2 1.7%
9 Brazil 2 1.7%
10 Ireland 2 1.7%
11 Egypt 1 0.8%
12 Indonesia 1 0.8%
13 Serbia 1 0.8%
14 South Africa 1 0.8%
15 Turkey 1 0.8%