BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 34 46.6%
2 United States 20 27.4%
3 Germany 7 9.6%
4 Hong Kong 3 4.1%
5 Japan 2 2.7%
6 Taiwan 2 2.7%
7 United Kingdom 1 1.4%
8 France 1 1.4%
9 Portugal 1 1.4%
10 Russia 1 1.4%
11 Sweden 1 1.4%