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 41.5%
2 China 7 17.1%
3 Germany 5 12.2%
4 Republic of Korea 4 9.8%
5 France 3 7.3%
6 Singapore 1 2.4%
7 Italy 1 2.4%
8 Finland 1 2.4%
9 Bangladesh 1 2.4%
10 Canada 1 2.4%