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 66 40%
2 United States 60 36.4%
3 Russia 15 9.1%
4 Netherlands 10 6.1%
5 Sweden 3 1.8%
6 Taiwan 3 1.8%
7 Hong Kong 3 1.8%
8 United Kingdom 2 1.2%
9 Japan 1 0.6%
10 Czech Republic 1 0.6%
11 Germany 1 0.6%