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 41 53.9%
2 Germany 12 15.8%
3 United States 7 9.2%
4 Hong Kong 4 5.3%
5 Canada 3 3.9%
6 Japan 2 2.6%
7 France 2 2.6%
8 Taiwan 2 2.6%
9 United Kingdom 2 2.6%
10 Netherlands 1 1.3%