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 44 52.4%
2 United States 11 13.1%
3 Hong Kong 10 11.9%
4 Germany 6 7.1%
5 Japan 3 3.6%
6 Singapore 3 3.6%
7 Taiwan 3 3.6%
8 United Kingdom 2 2.4%
9 Canada 1 1.2%
10 Netherlands 1 1.2%