BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 9 26.5%
2 United States 8 23.5%
3 Uzbekistan 3 8.8%
4 Canada 3 8.8%
5 Algeria 2 5.9%
6 Iran, Islamic Republic of 2 5.9%
7 Congo, The Democratic Republic of The 2 5.9%
8 Ethiopia 2 5.9%
9 Germany 1 2.9%
10 Russia 1 2.9%
11 Viet Nam 1 2.9%