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 43 61.4%
2 China 12 17.1%
3 Germany 3 4.3%
4 Canada 2 2.9%
5 United Kingdom 2 2.9%
6 Austria 1 1.4%
7 Finland 1 1.4%
8 Hong Kong 1 1.4%
9 Japan 1 1.4%
10 Malaysia 1 1.4%
11 Singapore 1 1.4%
12 Taiwan 1 1.4%
13 Thailand 1 1.4%