BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 15 22.1%
2 China 14 20.6%
3 Germany 10 14.7%
4 Netherlands 10 14.7%
5 Taiwan 5 7.4%
6 United Kingdom 4 5.9%
7 Hong Kong 3 4.4%
8 France 3 4.4%
9 India 1 1.5%
10 Estonia 1 1.5%
11 Poland 1 1.5%
12 Russia 1 1.5%