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 26 33.3%
2 United States 18 23.1%
3 Netherlands 17 21.8%
4 Germany 9 11.5%
5 Hong Kong 3 3.8%
6 Taiwan 2 2.6%
7 United Kingdom 1 1.3%
8 Russia 1 1.3%
9 France 1 1.3%