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 24 34.3%
2 United States 23 32.9%
3 Germany 12 17.1%
4 United Kingdom 3 4.3%
5 Canada 3 4.3%
6 Hong Kong 2 2.9%
7 Ireland 1 1.4%
8 Portugal 1 1.4%
9 Australia 1 1.4%