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 85 50.9%
2 United States 49 29.3%
3 Germany 12 7.2%
4 United Kingdom 8 4.8%
5 Canada 5 3%
6 Netherlands 2 1.2%
7 Switzerland 2 1.2%
8 Czech Republic 2 1.2%
9 France 1 0.6%
10 India 1 0.6%