BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 38 57.6%
2 Germany 6 9.1%
3 United States 5 7.6%
4 Singapore 4 6.1%
5 Canada 3 4.5%
6 Austria 2 3%
7 Hong Kong 2 3%
8 Ireland 2 3%
9 Japan 1 1.5%
10 Korea, Republic of 1 1.5%
11 Macao 1 1.5%
12 United Kingdom 1 1.5%