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 38 45.8%
2 United Kingdom 14 16.9%
3 China 13 15.7%
4 Russia 6 7.2%
5 India 2 2.4%
6 Korea, Republic of 2 2.4%
7 France 2 2.4%
8 Germany 2 2.4%
9 Hong Kong 1 1.2%
10 Estonia 1 1.2%
11 Finland 1 1.2%
12 Norway 1 1.2%