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 46 45.5%
2 United States 29 28.7%
3 Hong Kong 8 7.9%
4 Germany 7 6.9%
5 Taiwan 4 4%
6 Poland 2 2%
7 Portugal 1 1%
8 Sweden 1 1%
9 United Kingdom 1 1%
10 Japan 1 1%
11 France 1 1%