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 United States 39 51.3%
2 China 22 28.9%
3 Canada 4 5.3%
4 Hong Kong 3 3.9%
5 Singapore 2 2.6%
6 United Kingdom 2 2.6%
7 Italy 1 1.3%
8 New Zealand 1 1.3%
9 Australia 1 1.3%
10 Germany 1 1.3%