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 38 41.8%
2 United States 25 27.5%
3 Germany 13 14.3%
4 Hong Kong 5 5.5%
5 Taiwan 2 2.2%
6 Canada 2 2.2%
7 United Kingdom 1 1.1%
8 Ecuador 1 1.1%
9 France 1 1.1%
10 Japan 1 1.1%
11 Portugal 1 1.1%
12 Sweden 1 1.1%