BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 20 35.7%
2 China 20 35.7%
3 Hong Kong 3 5.4%
4 Korea, Republic of 3 5.4%
5 Switzerland 2 3.6%
6 Taiwan 2 3.6%
7 United Kingdom 2 3.6%
8 United States 2 3.6%
9 Sweden 1 1.8%
10 Germany 1 1.8%