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 55 58.5%
2 Germany 12 12.8%
3 China 11 11.7%
4 India 7 7.4%
5 Netherlands 4 4.3%
6 United Kingdom 2 2.1%
7 Republic of Korea 1 1.1%
8 Singapore 1 1.1%
9 Taiwan 1 1.1%