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 45 35.2%
2 United States 41 32%
3 Netherlands 17 13.3%
4 Sweden 10 7.8%
5 Korea, Republic of 3 2.3%
6 Germany 3 2.3%
7 Hong Kong 2 1.6%
8 Canada 2 1.6%
9 United Kingdom 2 1.6%
10 Russia 1 0.8%
11 Singapore 1 0.8%
12 Japan 1 0.8%