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 38 29.7%
2 United States 36 28.1%
3 Germany 26 20.3%
4 Netherlands 8 6.2%
5 United Kingdom 5 3.9%
6 Sweden 4 3.1%
7 Philippines 4 3.1%
8 Russia 3 2.3%
9 Singapore 2 1.6%
10 Moldova, Republic of 2 1.6%