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 United States 66 47.1%
2 China 31 22.1%
3 Germany 14 10%
4 France 10 7.1%
5 Hong Kong 5 3.6%
6 United Kingdom 4 2.9%
7 Senegal 3 2.1%
8 India 3 2.1%
9 Russia 2 1.4%
10 Estonia 1 0.7%
11 Netherlands 1 0.7%