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 175 62.9%
2 United States 48 17.3%
3 Germany 37 13.3%
4 Netherlands 5 1.8%
5 Singapore 2 0.7%
6 Ireland 2 0.7%
7 Austria 2 0.7%
8 United Kingdom 2 0.7%
9 Uzbekistan 1 0.4%
10 Australia 1 0.4%
11 France 1 0.4%
12 Japan 1 0.4%
13 United Arab Emirates 1 0.4%