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 174 52.1%
2 United States 86 25.7%
3 Germany 38 11.4%
4 Canada 21 6.3%
5 Singapore 5 1.5%
6 United Kingdom 2 0.6%
7 France 2 0.6%
8 Hong Kong 2 0.6%
9 Israel 1 0.3%
10 Netherlands 1 0.3%
11 1 0.3%
12 Taiwan 1 0.3%