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 9 32.1%
2 Germany 4 14.3%
3 Netherlands 4 14.3%
4 Senegal 3 10.7%
5 China 3 10.7%
6 Australia 1 3.6%
7 India 1 3.6%
8 Iran, Islamic Republic of 1 3.6%
9 Taiwan 1 3.6%
10 United Kingdom 1 3.6%