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 44.4%
2 United States 37 37.4%
3 Germany 7 7.1%
4 Hong Kong 3 3%
5 India 2 2%
6 Taiwan 2 2%
7 Japan 1 1%
8 Netherlands 1 1%
9 Portugal 1 1%
10 Sweden 1 1%