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 185 60.1%
2 Germany 53 17.2%
3 United States 43 14%
4 France 16 5.2%
5 Sweden 4 1.3%
6 United Kingdom 2 0.6%
7 Singapore 2 0.6%
8 Canada 1 0.3%
9 Moldova, Republic of 1 0.3%
10 Netherlands 1 0.3%