BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 258 65.6%
2 United States 56 14.2%
3 Germany 34 8.7%
4 Canada 24 6.1%
5 Netherlands 4 1%
6 Hong Kong 4 1%
7 Australia 4 1%
8 Burkina Faso 2 0.5%
9 Japan 2 0.5%
10 Malaysia 2 0.5%
11 Sweden 2 0.5%
12 Israel 1 0.3%