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 119 64.3%
2 United States 33 17.8%
3 Germany 16 8.6%
4 Hong Kong 7 3.8%
5 Canada 4 2.2%
6 Taiwan 2 1.1%
7 United Kingdom 1 0.5%
8 Portugal 1 0.5%
9 South Africa 1 0.5%
10 Sweden 1 0.5%