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 139 56.5%
2 United States 57 23.2%
3 Germany 18 7.3%
4 Taiwan 9 3.7%
5 France 5 2%
6 Hong Kong 5 2%
7 United Kingdom 3 1.2%
8 Singapore 2 0.8%
9 Hungary 2 0.8%
10 Canada 2 0.8%
11 1 0.4%
12 Equatorial Guinea 1 0.4%
13 Japan 1 0.4%
14 Portugal 1 0.4%