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 42 50%
2 China 11 13.1%
3 Russia 9 10.7%
4 United Kingdom 7 8.3%
5 Korea, Republic of 3 3.6%
6 Estonia 3 3.6%
7 Germany 2 2.4%
8 Netherlands 2 2.4%
9 India 2 2.4%
10 Poland 1 1.2%
11 Hong Kong 1 1.2%
12 France 1 1.2%