BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 33 44.6%
2 Germany 14 18.9%
3 United States 14 18.9%
4 Netherlands 4 5.4%
5 Canada 4 5.4%
6 United Kingdom 2 2.7%
7 Taiwan 1 1.4%
8 Hong Kong 1 1.4%
9 France 1 1.4%