BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 United States 16 29.1%
2 Iran, Islamic Republic of 7 12.7%
3 Germany 5 9.1%
4 Singapore 5 9.1%
5 China 4 7.3%
6 Canada 3 5.5%
7 Hong Kong 3 5.5%
8 Taiwan 3 5.5%
9 Spain 2 3.6%
10 Viet Nam 2 3.6%
11 Ireland 2 3.6%
12 Japan 2 3.6%
13 Malaysia 1 1.8%