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 76 57.1%
2 China 29 21.8%
3 Finland 7 5.3%
4 Germany 6 4.5%
5 France 5 3.8%
6 Netherlands 4 3%
7 Canada 2 1.5%
8 Republic of Korea 1 0.8%
9 Singapore 1 0.8%
10 United Kingdom 1 0.8%
11 Hashemite Kingdom of Jordan 1 0.8%