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 27 35.1%
2 China 21 27.3%
3 Germany 12 15.6%
4 Netherlands 5 6.5%
5 Republic of Korea 3 3.9%
6 3 3.9%
7 Canada 1 1.3%
8 Finland 1 1.3%
9 Hong Kong 1 1.3%
10 Japan 1 1.3%
11 Laos 1 1.3%
12 United Kingdom 1 1.3%