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 53 38.4%
2 China 42 30.4%
3 Netherlands 17 12.3%
4 Canada 7 5.1%
5 Pakistan 4 2.9%
6 Sweden 3 2.2%
7 United Kingdom 3 2.2%
8 France 3 2.2%
9 Germany 3 2.2%
10 Hong Kong 2 1.4%
11 Singapore 1 0.7%