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 United States 86 38.2%
2 China 74 32.9%
3 Germany 25 11.1%
4 Netherlands 17 7.6%
5 Canada 15 6.7%
6 Korea, Republic of 4 1.8%
7 Sweden 1 0.4%
8 India 1 0.4%
9 Iran, Islamic Republic of 1 0.4%
10 Italy 1 0.4%