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 110 56.7%
2 China 35 18%
3 Germany 18 9.3%
4 Netherlands 14 7.2%
5 France 7 3.6%
6 United Kingdom 4 2.1%
7 India 2 1%
8 Korea, Republic of 1 0.5%
9 Norway 1 0.5%
10 Poland 1 0.5%
11 Taiwan 1 0.5%