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 196 57.1%
2 United States 79 23%
3 Germany 36 10.5%
4 Ireland 6 1.7%
5 Netherlands 5 1.5%
6 Taiwan 5 1.5%
7 Korea, Republic of 4 1.2%
8 Sweden 3 0.9%
9 United Kingdom 2 0.6%
10 Malaysia 2 0.6%
11 Russia 2 0.6%
12 Singapore 2 0.6%
13 Nigeria 1 0.3%