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 55 53.9%
2 United States 24 23.5%
3 Korea, Republic of 7 6.9%
4 Germany 4 3.9%
5 Hong Kong 4 3.9%
6 Taiwan 4 3.9%
7 United Kingdom 1 1%
8 Canada 1 1%
9 Portugal 1 1%
10 Russia 1 1%