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 42 53.8%
2 United States 13 16.7%
3 Germany 5 6.4%
4 Hong Kong 4 5.1%
5 Malaysia 4 5.1%
6 Netherlands 4 5.1%
7 Canada 2 2.6%
8 United Kingdom 2 2.6%
9 Singapore 1 1.3%
10 Sweden 1 1.3%