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 46 50%
2 Germany 17 18.5%
3 United States 16 17.4%
4 Hong Kong 3 3.3%
5 Netherlands 2 2.2%
6 Canada 2 2.2%
7 Portugal 1 1.1%
8 Serbia 1 1.1%
9 Sweden 1 1.1%
10 United Kingdom 1 1.1%
11 India 1 1.1%
12 France 1 1.1%