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 11 22.4%
2 United States 11 22.4%
3 Netherlands 10 20.4%
4 Germany 7 14.3%
5 Hong Kong 3 6.1%
6 Norway 3 6.1%
7 United Kingdom 2 4.1%
8 Belgium 1 2%
9 France 1 2%