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 17 29.8%
2 China 14 24.6%
3 Germany 14 24.6%
4 India 3 5.3%
5 Netherlands 3 5.3%
6 Republic of Korea 2 3.5%
7 Canada 2 3.5%
8 Singapore 1 1.8%
9 Korea, Republic of 1 1.8%