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 57 57.6%
2 United States 21 21.2%
3 Germany 8 8.1%
4 Hong Kong 4 4%
5 Mexico 3 3%
6 Taiwan 2 2%
7 United Kingdom 1 1%
8 Canada 1 1%
9 Portugal 1 1%
10 Sweden 1 1%