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 China 31 41.3%
2 Germany 19 25.3%
3 United States 12 16%
4 Nigeria 4 5.3%
5 Iran, Islamic Republic of 2 2.7%
6 Netherlands 2 2.7%
7 United Kingdom 1 1.3%
8 India 1 1.3%
9 Cote D'ivoire 1 1.3%
10 France 1 1.3%
11 Canada 1 1.3%