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 16 28.6%
2 Germany 14 25%
3 China 14 25%
4 Nigeria 4 7.1%
5 Denmark 2 3.6%
6 France 1 1.8%
7 Brazil 1 1.8%
8 Greece 1 1.8%
9 India 1 1.8%
10 Japan 1 1.8%
11 Netherlands 1 1.8%