BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 12 36.4%
2 China 7 21.2%
3 Australia 3 9.1%
4 Taiwan 3 9.1%
5 Korea, Republic of 2 6.1%
6 Sweden 2 6.1%
7 France 2 6.1%
8 Hong Kong 1 3%
9 Canada 1 3%