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 185 44.6%
2 United States 155 37.3%
3 Germany 29 7%
4 Taiwan 14 3.4%
5 Singapore 9 2.2%
6 United Kingdom 5 1.2%
7 Hong Kong 3 0.7%
8 Japan 2 0.5%
9 Macao 2 0.5%
10 Netherlands 2 0.5%
11 Russia 2 0.5%
12 Sweden 2 0.5%
13 Switzerland 2 0.5%
14 Turkey 2 0.5%
15 Ireland 1 0.2%