BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 44 39.3%
2 United States 29 25.9%
3 Germany 17 15.2%
4 Hong Kong 5 4.5%
5 5 4.5%
6 Taiwan 3 2.7%
7 Norway 2 1.8%
8 Portugal 1 0.9%
9 Russia 1 0.9%
10 Sweden 1 0.9%
11 Canada 1 0.9%
12 France 1 0.9%
13 United Kingdom 1 0.9%
14 Netherlands 1 0.9%