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 34 30.9%
2 China 26 23.6%
3 Netherlands 23 20.9%
4 Germany 11 10%
5 France 8 7.3%
6 Hong Kong 3 2.7%
7 United Kingdom 2 1.8%
8 Russia 1 0.9%
9 Czech Republic 1 0.9%
10 Estonia 1 0.9%