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 226 61.4%
2 United States 66 17.9%
3 Germany 32 8.7%
4 Hong Kong 15 4.1%
5 Netherlands 8 2.2%
6 Sweden 5 1.4%
7 Russia 4 1.1%
8 Japan 4 1.1%
9 Canada 2 0.5%
10 Taiwan 2 0.5%
11 United Kingdom 2 0.5%
12 Switzerland 1 0.3%
13 Australia 1 0.3%