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 24 35.8%
2 Germany 13 19.4%
3 China 11 16.4%
4 Iran 5 7.5%
5 Netherlands 4 6%
6 Romania 4 6%
7 Finland 2 3%
8 Hong Kong 1 1.5%
9 India 1 1.5%
10 Bolivia, Plurinational State of 1 1.5%
11 Norway 1 1.5%