BPG致力于知识的发现和传播
Total Visits of This Article
2023 | 总访问次数
排名 国家/地区 数量 占比
1 China 20 52.6%
2 United States 6 15.8%
3 Iran, Islamic Republic of 3 7.9%
4 Netherlands 3 7.9%
5 Brazil 2 5.3%
6 Taiwan 2 5.3%
7 Russia 1 2.6%
8 Germany 1 2.6%