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 United States 32 38.6%
2 China 25 30.1%
3 Germany 15 18.1%
4 Hong Kong 3 3.6%
5 Canada 3 3.6%
6 France 1 1.2%
7 Netherlands 1 1.2%
8 Portugal 1 1.2%
9 Sweden 1 1.2%
10 United Kingdom 1 1.2%