BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 United States 42 45.2%
2 China 23 24.7%
3 Netherlands 8 8.6%
4 Canada 7 7.5%
5 Germany 5 5.4%
6 France 2 2.2%
7 Sweden 2 2.2%
8 Taiwan 2 2.2%
9 United Kingdom 1 1.1%
10 Hong Kong 1 1.1%