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 China 23 40.4%
2 United States 11 19.3%
3 Germany 4 7%
4 Russia 4 7%
5 Hong Kong 3 5.3%
6 2 3.5%
7 Austria 2 3.5%
8 Canada 2 3.5%
9 Taiwan 2 3.5%
10 United Kingdom 2 3.5%
11 Singapore 1 1.8%
12 India 1 1.8%