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 348 63%
2 United States 140 25.4%
3 Germany 25 4.5%
4 Taiwan 9 1.6%
5 United Arab Emirates 5 0.9%
6 Macao 4 0.7%
7 Singapore 3 0.5%
8 Iceland 3 0.5%
9 Ethiopia 3 0.5%
10 Japan 2 0.4%
11 Hong Kong 2 0.4%
12 Sweden 2 0.4%
13 Netherlands 2 0.4%
14 United Kingdom 2 0.4%
15 Australia 1 0.2%
16 Canada 1 0.2%