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 China 25 37.3%
2 United States 18 26.9%
3 Germany 11 16.4%
4 Netherlands 6 9%
5 Republic of Korea 2 3%
6 Spain 2 3%
7 Switzerland 1 1.5%
8 Australia 1 1.5%
9 Bangladesh 1 1.5%