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 53 35.8%
2 United States 34 23%
3 Germany 23 15.5%
4 Netherlands 16 10.8%
5 Sweden 5 3.4%
6 Canada 5 3.4%
7 Japan 3 2%
8 Kenya 3 2%
9 Malaysia 2 1.4%
10 Viet Nam 1 0.7%
11 Macao 1 0.7%
12 Australia 1 0.7%
13 Hungary 1 0.7%