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 52 43.3%
2 China 27 22.5%
3 Germany 12 10%
4 Russia 6 5%
5 Ireland 5 4.2%
6 United Kingdom 4 3.3%
7 Netherlands 3 2.5%
8 Hong Kong 3 2.5%
9 Canada 2 1.7%
10 Singapore 1 0.8%
11 Switzerland 1 0.8%
12 Ukraine 1 0.8%
13 India 1 0.8%
14 Poland 1 0.8%
15 Korea, Republic of 1 0.8%