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 28 37.3%
2 United States 23 30.7%
3 Taiwan 8 10.7%
4 Germany 7 9.3%
5 Hong Kong 3 4%
6 Netherlands 2 2.7%
7 Portugal 1 1.3%
8 Sweden 1 1.3%
9 United Kingdom 1 1.3%
10 Canada 1 1.3%