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 151 61.1%
2 United States 50 20.2%
3 Germany 30 12.1%
4 Hong Kong 3 1.2%
5 Canada 3 1.2%
6 United Kingdom 2 0.8%
7 Romania 2 0.8%
8 Singapore 2 0.8%
9 Finland 2 0.8%
10 Japan 1 0.4%
11 Sweden 1 0.4%