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 China 32 35.2%
2 United States 31 34.1%
3 Russia 11 12.1%
4 Netherlands 7 7.7%
5 United Kingdom 5 5.5%
6 Ireland 2 2.2%
7 Korea, Republic of 1 1.1%
8 Estonia 1 1.1%
9 Germany 1 1.1%