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 15 23.1%
2 Netherlands 15 23.1%
3 United States 10 15.4%
4 Germany 7 10.8%
5 United Kingdom 6 9.2%
6 Taiwan 5 7.7%
7 Hong Kong 3 4.6%
8 Russia 2 3.1%
9 Poland 1 1.5%
10 France 1 1.5%