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 Canada 8 17.4%
3 Sweden 5 10.9%
4 Netherlands 3 6.5%
5 Germany 3 6.5%
6 Hong Kong 2 4.3%
7 Japan 2 4.3%
8 United States 2 4.3%
9 Singapore 1 2.2%
10 Taiwan 1 2.2%