BPG致力于知识的发现和传播
Total Visits of This Article
2017 | 总访问次数
排名 国家/地区 数量 占比
1 United States 31 39.7%
2 Germany 15 19.2%
3 China 13 16.7%
4 Russia 7 9%
5 Nigeria 4 5.1%
6 United Kingdom 3 3.8%
7 Australia 2 2.6%
8 India 1 1.3%
9 Ireland 1 1.3%
10 Netherlands 1 1.3%