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 29 63%
2 Germany 5 10.9%
3 United States 5 10.9%
4 Canada 2 4.3%
5 Italy 1 2.2%
6 Moldova, Republic of 1 2.2%
7 Switzerland 1 2.2%
8 Turkey 1 2.2%
9 United Kingdom 1 2.2%