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 51 53.1%
2 Germany 11 11.5%
3 United States 11 11.5%
4 Sweden 8 8.3%
5 Canada 5 5.2%
6 France 2 2.1%
7 United Kingdom 2 2.1%
8 India 2 2.1%
9 Viet Nam 2 2.1%
10 Netherlands 1 1%
11 Brazil 1 1%