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 China 19 22.1%
2 United States 19 22.1%
3 Germany 16 18.6%
4 Netherlands 11 12.8%
5 Taiwan 6 7%
6 United Kingdom 4 4.7%
7 Hong Kong 3 3.5%
8 France 3 3.5%
9 Russia 2 2.3%
10 India 1 1.2%
11 Estonia 1 1.2%
12 Finland 1 1.2%