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 69 36.5%
2 United States 49 25.9%
3 Taiwan 22 11.6%
4 Netherlands 19 10.1%
5 Hong Kong 10 5.3%
6 Sweden 6 3.2%
7 Germany 4 2.1%
8 United Kingdom 3 1.6%
9 Canada 2 1.1%
10 Serbia 2 1.1%
11 Singapore 2 1.1%
12 France 1 0.5%