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 233 60.1%
2 United States 64 16.5%
3 Germany 34 8.8%
4 Canada 24 6.2%
5 Hong Kong 6 1.5%
6 Australia 4 1%
7 Netherlands 4 1%
8 Taiwan 3 0.8%
9 United Kingdom 3 0.8%
10 Romania 2 0.5%
11 Russia 2 0.5%
12 Singapore 2 0.5%
13 Sweden 2 0.5%
14 Czech Republic 2 0.5%
15 Japan 2 0.5%
16 Luxembourg 1 0.3%