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 284 42.3%
2 Netherlands 161 24%
3 United States 129 19.2%
4 Germany 57 8.5%
5 Canada 23 3.4%
6 France 4 0.6%
7 Russia 4 0.6%
8 United Kingdom 3 0.4%
9 Singapore 2 0.3%
10 Sweden 2 0.3%
11 Bangladesh 2 0.3%
12 Taiwan 1 0.1%