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 21 37.5%
2 China 12 21.4%
3 Canada 5 8.9%
4 Singapore 4 7.1%
5 Taiwan 4 7.1%
6 Germany 4 7.1%
7 Hong Kong 3 5.4%
8 Italy 1 1.8%
9 Malaysia 1 1.8%
10 Saudi Arabia 1 1.8%