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 18 37.5%
2 Germany 10 20.8%
3 Singapore 7 14.6%
4 China 6 12.5%
5 Netherlands 4 8.3%
6 Czech Republic 1 2.1%
7 France 1 2.1%
8 Canada 1 2.1%