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 28 28.9%
2 United States 28 28.9%
3 Germany 16 16.5%
4 Hong Kong 11 11.3%
5 Canada 5 5.2%
6 Taiwan 4 4.1%
7 United Kingdom 1 1%
8 Kazakhstan 1 1%
9 Malaysia 1 1%
10 Portugal 1 1%
11 Singapore 1 1%