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 United States 212 45.9%
2 China 191 41.3%
3 Germany 32 6.9%
4 Hong Kong 6 1.3%
5 Netherlands 6 1.3%
6 Singapore 2 0.4%
7 Sweden 2 0.4%
8 Canada 2 0.4%
9 Japan 2 0.4%
10 Finland 2 0.4%
11 Austria 1 0.2%
12 Brazil 1 0.2%
13 Italy 1 0.2%
14 Turkey 1 0.2%
15 United Kingdom 1 0.2%