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 53 52.5%
2 United States 10 9.9%
3 Germany 7 6.9%
4 Canada 7 6.9%
5 Hong Kong 6 5.9%
6 Singapore 5 5%
7 Taiwan 5 5%
8 United Kingdom 3 3%
9 Netherlands 2 2%
10 Italy 1 1%
11 Japan 1 1%
12 Malaysia 1 1%