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 30 33%
2 Netherlands 23 25.3%
3 United States 22 24.2%
4 Germany 7 7.7%
5 United Kingdom 3 3.3%
6 Hong Kong 2 2.2%
7 Japan 1 1.1%
8 France 1 1.1%
9 Viet Nam 1 1.1%
10 Switzerland 1 1.1%