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 23 30.7%
2 Netherlands 14 18.7%
3 United States 12 16%
4 Canada 8 10.7%
5 Germany 5 6.7%
6 Sweden 5 6.7%
7 Australia 3 4%
8 Hong Kong 2 2.7%
9 Singapore 2 2.7%
10 United Kingdom 1 1.3%