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 25 37.9%
2 United States 17 25.8%
3 Germany 6 9.1%
4 Singapore 4 6.1%
5 Senegal 3 4.5%
6 Malaysia 2 3%
7 Hong Kong 2 3%
8 United Kingdom 2 3%
9 Italy 1 1.5%
10 Japan 1 1.5%
11 Korea, Republic of 1 1.5%
12 Russia 1 1.5%
13 Canada 1 1.5%