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 165 54.6%
2 United States 49 16.2%
3 Germany 36 11.9%
4 Netherlands 17 5.6%
5 Canada 15 5%
6 Hong Kong 6 2%
7 Hungary 2 0.7%
8 Israel 2 0.7%
9 Japan 2 0.7%
10 2 0.7%
11 Finland 2 0.7%
12 Singapore 2 0.7%
13 United Kingdom 1 0.3%
14 France 1 0.3%