BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 53 52.5%
2 United States 24 23.8%
3 Germany 9 8.9%
4 Hong Kong 5 5%
5 Sweden 3 3%
6 Taiwan 2 2%
7 France 2 2%
8 United Kingdom 1 1%
9 Korea, Republic of 1 1%
10 Portugal 1 1%