BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 5 31.2%
2 China 2 12.5%
3 Germany 2 12.5%
4 Netherlands 2 12.5%
5 Russia 1 6.2%
6 Taiwan 1 6.2%
7 United Kingdom 1 6.2%
8 India 1 6.2%
9 Korea, Republic of 1 6.2%