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 197 50.6%
2 United States 73 18.8%
3 Germany 44 11.3%
4 Netherlands 30 7.7%
5 Sweden 13 3.3%
6 Singapore 9 2.3%
7 Canada 7 1.8%
8 Hong Kong 4 1%
9 India 3 0.8%
10 Turkey 3 0.8%
11 Japan 2 0.5%
12 Russia 2 0.5%
13 United Kingdom 1 0.3%
14 Taiwan 1 0.3%