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
1 645 74.3%
2 United States 156 18%
3 China 40 4.6%
4 Germany 9 1%
5 Hong Kong 5 0.6%
6 France 5 0.6%
7 United Kingdom 3 0.3%
8 Australia 1 0.1%
9 Canada 1 0.1%
10 Japan 1 0.1%
11 Netherlands 1 0.1%
12 Sweden 1 0.1%