BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 221 68.4%
2 United States 45 13.9%
3 Germany 40 12.4%
4 Ireland 3 0.9%
5 Russia 3 0.9%
6 Singapore 2 0.6%
7 Switzerland 2 0.6%
8 United Kingdom 2 0.6%
9 Austria 2 0.6%
10 Canada 2 0.6%
11 Netherlands 1 0.3%