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 142 62.8%
2 Germany 39 17.3%
3 United States 27 11.9%
4 Ireland 4 1.8%
5 Canada 4 1.8%
6 Turkey 4 1.8%
7 Serbia 2 0.9%
8 Hong Kong 2 0.9%
9 Moldova, Republic of 1 0.4%
10 United Kingdom 1 0.4%