BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 China 167 65.7%
2 United States 53 20.9%
3 Germany 18 7.1%
4 Hong Kong 5 2%
5 Canada 3 1.2%
6 United Kingdom 2 0.8%
7 Ireland 1 0.4%
8 Japan 1 0.4%
9 Poland 1 0.4%
10 Serbia 1 0.4%
11 Singapore 1 0.4%
12 Taiwan 1 0.4%