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 United States 45 39.8%
2 China 26 23%
3 Netherlands 20 17.7%
4 Canada 8 7.1%
5 Australia 5 4.4%
6 Germany 5 4.4%
7 Finland 1 0.9%
8 Russia 1 0.9%
9 Singapore 1 0.9%
10 United Arab Emirates 1 0.9%