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 19 41.3%
2 United States 14 30.4%
3 Canada 2 4.3%
4 Taiwan 2 4.3%
5 United Arab Emirates 2 4.3%
6 Germany 2 4.3%
7 Hong Kong 2 4.3%
8 Netherlands 2 4.3%
9 Switzerland 1 2.2%