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 42 51.9%
2 Germany 13 16%
3 China 12 14.8%
4 India 4 4.9%
5 Netherlands 3 3.7%
6 Romania 3 3.7%
7 United Kingdom 1 1.2%
8 Iran, Islamic Republic of 1 1.2%
9 Denmark 1 1.2%
10 Hong Kong 1 1.2%