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 194 57.2%
2 United States 91 26.8%
3 Germany 28 8.3%
4 Russia 6 1.8%
5 Hong Kong 5 1.5%
6 Finland 5 1.5%
7 Switzerland 3 0.9%
8 United Kingdom 3 0.9%
9 Netherlands 2 0.6%
10 Turkey 1 0.3%
11 Sweden 1 0.3%