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 139 53.9%
2 United States 45 17.4%
3 Germany 36 14%
4 Canada 16 6.2%
5 Japan 6 2.3%
6 Hong Kong 3 1.2%
7 Finland 3 1.2%
8 United Kingdom 3 1.2%
9 Singapore 2 0.8%
10 Taiwan 2 0.8%
11 United Arab Emirates 2 0.8%
12 Russia 1 0.4%