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 60 39%
2 United States 42 27.3%
3 Germany 13 8.4%
4 Netherlands 12 7.8%
5 Taiwan 9 5.8%
6 France 7 4.5%
7 Hong Kong 4 2.6%
8 Austria 3 1.9%
9 United Kingdom 2 1.3%
10 Philippines 1 0.6%
11 Russia 1 0.6%