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 48 46.6%
2 United States 17 16.5%
3 Netherlands 13 12.6%
4 Sweden 7 6.8%
5 Germany 5 4.9%
6 Italy 4 3.9%
7 Canada 4 3.9%
8 Czech Republic 3 2.9%
9 France 1 1%
10 Austria 1 1%