BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 United States 23 38.3%
2 Germany 17 28.3%
3 China 7 11.7%
4 Netherlands 3 5%
5 India 2 3.3%
6 United Kingdom 2 3.3%
7 Iran, Islamic Republic of 1 1.7%
8 Korea, Republic of 1 1.7%
9 Spain 1 1.7%
10 Taiwan 1 1.7%
11 Canada 1 1.7%
12 Greece 1 1.7%