BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 China 3 23.1%
2 United States 2 15.4%
3 Hong Kong 2 15.4%
4 Iran, Islamic Republic of 1 7.7%
5 Poland 1 7.7%
6 Singapore 1 7.7%
7 United Kingdom 1 7.7%
8 Australia 1 7.7%
9 Denmark 1 7.7%