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 United States 21 32.8%
2 China 12 18.8%
3 Germany 11 17.2%
4 Netherlands 7 10.9%
5 France 5 7.8%
6 Iran, Islamic Republic of 4 6.2%
7 Spain 2 3.1%
8 Australia 2 3.1%