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 25 38.5%
2 China 20 30.8%
3 France 6 9.2%
4 Hong Kong 4 6.2%
5 Germany 3 4.6%
6 Canada 2 3.1%
7 Australia 1 1.5%
8 Finland 1 1.5%
9 Japan 1 1.5%
10 Switzerland 1 1.5%
11 United Kingdom 1 1.5%