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 47 51.1%
2 China 20 21.7%
3 Germany 10 10.9%
4 Hong Kong 4 4.3%
5 Netherlands 3 3.3%
6 United Kingdom 3 3.3%
7 France 2 2.2%
8 Canada 1 1.1%
9 Estonia 1 1.1%
10 Norway 1 1.1%