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 40 29.6%
2 China 37 27.4%
3 Netherlands 18 13.3%
4 Germany 12 8.9%
5 Canada 9 6.7%
6 United Kingdom 5 3.7%
7 Hong Kong 5 3.7%
8 Taiwan 3 2.2%
9 Singapore 2 1.5%
10 Sweden 1 0.7%
11 France 1 0.7%
12 India 1 0.7%
13 Italy 1 0.7%