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 63 39.9%
2 China 53 33.5%
3 United Kingdom 12 7.6%
4 Russia 8 5.1%
5 France 5 3.2%
6 Estonia 3 1.9%
7 Canada 2 1.3%
8 Hong Kong 2 1.3%
9 India 2 1.3%
10 Taiwan 2 1.3%
11 Germany 1 0.6%
12 Korea, Republic of 1 0.6%
13 Moldova, Republic of 1 0.6%
14 Netherlands 1 0.6%
15 Poland 1 0.6%
16 Denmark 1 0.6%