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 191 57%
2 United States 60 17.9%
3 Germany 38 11.3%
4 Japan 9 2.7%
5 Taiwan 6 1.8%
6 Sweden 5 1.5%
7 Hong Kong 5 1.5%
8 Canada 5 1.5%
9 Macao 3 0.9%
10 Romania 3 0.9%
11 Russia 3 0.9%
12 Singapore 2 0.6%
13 United Kingdom 2 0.6%
14 Ukraine 1 0.3%
15 Malaysia 1 0.3%
16 Austria 1 0.3%