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 190 60.9%
2 United States 49 15.7%
3 Germany 39 12.5%
4 Taiwan 16 5.1%
5 Hong Kong 7 2.2%
6 Ukraine 3 1%
7 United Kingdom 2 0.6%
8 Russia 2 0.6%
9 Sweden 2 0.6%
10 Ireland 1 0.3%
11 Moldova, Republic of 1 0.3%