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 149 52.5%
2 United States 66 23.2%
3 Germany 38 13.4%
4 Hong Kong 5 1.8%
5 Taiwan 5 1.8%
6 United Kingdom 4 1.4%
7 Canada 4 1.4%
8 France 3 1.1%
9 Ireland 3 1.1%
10 Netherlands 2 0.7%
11 Sweden 2 0.7%
12 Australia 2 0.7%
13 Ukraine 1 0.4%