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 China 19 40.4%
2 United States 15 31.9%
3 Australia 4 8.5%
4 Canada 3 6.4%
5 United Kingdom 2 4.3%
6 Hong Kong 1 2.1%
7 Indonesia 1 2.1%
8 Korea, Republic of 1 2.1%
9 Switzerland 1 2.1%