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 37 40.2%
2 United States 24 26.1%
3 United Kingdom 10 10.9%
4 Russia 7 7.6%
5 Estonia 5 5.4%
6 Poland 3 3.3%
7 India 2 2.2%
8 Netherlands 2 2.2%
9 France 1 1.1%
10 Hong Kong 1 1.1%