BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 153 52.9%
2 United States 51 17.6%
3 Germany 45 15.6%
4 Netherlands 8 2.8%
5 Russia 7 2.4%
6 Ireland 5 1.7%
7 Hong Kong 4 1.4%
8 Norway 4 1.4%
9 Canada 3 1%
10 Singapore 3 1%
11 Sweden 2 0.7%
12 United Kingdom 2 0.7%
13 Ukraine 1 0.3%
14 Japan 1 0.3%