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 36 46.2%
2 United States 14 17.9%
3 Netherlands 10 12.8%
4 Canada 8 10.3%
5 Germany 5 6.4%
6 Austria 2 2.6%
7 Russia 1 1.3%
8 Singapore 1 1.3%
9 United Arab Emirates 1 1.3%