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 73 47.7%
2 United States 52 34%
3 Germany 7 4.6%
4 Hong Kong 6 3.9%
5 Portugal 4 2.6%
6 Taiwan 4 2.6%
7 United Kingdom 2 1.3%
8 Russia 2 1.3%
9 Sweden 1 0.7%
10 Iran, Islamic Republic of 1 0.7%
11 Canada 1 0.7%