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 United States 1682 96.6%
2 China 41 2.4%
3 Germany 5 0.3%
4 Hong Kong 4 0.2%
5 Macao 2 0.1%
6 Canada 2 0.1%
7 United Kingdom 2 0.1%
8 Russia 1 0.1%
9 Singapore 1 0.1%
10 Taiwan 1 0.1%
11 Japan 1 0.1%