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 92 47.9%
2 United States 39 20.3%
3 Taiwan 22 11.5%
4 Germany 14 7.3%
5 Hong Kong 12 6.2%
6 Japan 4 2.1%
7 Canada 4 2.1%
8 Korea, Republic of 2 1%
9 Portugal 1 0.5%
10 Singapore 1 0.5%
11 United Kingdom 1 0.5%