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 233 62.5%
2 United States 80 21.4%
3 Germany 33 8.8%
4 Hong Kong 11 2.9%
5 Norway 3 0.8%
6 Canada 3 0.8%
7 Russia 2 0.5%
8 Sweden 2 0.5%
9 United Kingdom 2 0.5%
10 Korea, Republic of 2 0.5%
11 France 1 0.3%
12 Uzbekistan 1 0.3%