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 16 24.6%
2 Netherlands 15 23.1%
3 United States 15 23.1%
4 Germany 8 12.3%
5 Hong Kong 3 4.6%
6 United Kingdom 3 4.6%
7 Norway 3 4.6%
8 Russia 1 1.5%
9 France 1 1.5%