BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 251 85.4%
2 China 20 6.8%
3 United States 6 2%
4 Germany 4 1.4%
5 Poland 3 1%
6 Taiwan 3 1%
7 United Kingdom 3 1%
8 Singapore 1 0.3%
9 Canada 1 0.3%
10 Hong Kong 1 0.3%
11 Japan 1 0.3%