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 14 23%
2 China 13 21.3%
3 Netherlands 11 18%
4 Germany 8 13.1%
5 Hong Kong 5 8.2%
6 Singapore 3 4.9%
7 United Kingdom 2 3.3%
8 Australia 2 3.3%
9 Canada 2 3.3%
10 France 1 1.6%