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 163 64.4%
2 Germany 36 14.2%
3 United States 34 13.4%
4 Taiwan 10 4%
5 United Kingdom 3 1.2%
6 Netherlands 3 1.2%
7 United Arab Emirates 2 0.8%
8 Australia 1 0.4%
9 Canada 1 0.4%