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 82 55.4%
2 United States 29 19.6%
3 Germany 18 12.2%
4 Taiwan 5 3.4%
5 Hong Kong 4 2.7%
6 Japan 2 1.4%
7 United Kingdom 2 1.4%
8 Singapore 2 1.4%
9 Canada 2 1.4%
10 Sweden 1 0.7%
11 Portugal 1 0.7%