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 20 35.1%
2 Germany 12 21.1%
3 China 10 17.5%
4 Netherlands 5 8.8%
5 Taiwan 2 3.5%
6 India 2 3.5%
7 Australia 2 3.5%
8 Belgium 1 1.8%
9 Finland 1 1.8%
10 Iran, Islamic Republic of 1 1.8%
11 Armenia 1 1.8%