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 United States 55 61.1%
2 China 17 18.9%
3 Hong Kong 5 5.6%
4 Korea, Republic of 4 4.4%
5 Germany 4 4.4%
6 Taiwan 2 2.2%
7 United Kingdom 1 1.1%
8 Russia 1 1.1%
9 France 1 1.1%