BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 142 60.9%
2 United States 42 18%
3 Netherlands 26 11.2%
4 Japan 7 3%
5 Germany 7 3%
6 Iran, Islamic Republic of 3 1.3%
7 Italy 2 0.9%
8 Hong Kong 2 0.9%
9 Sweden 2 0.9%