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 1215 91%
2 United States 46 3.4%
3 Germany 36 2.7%
4 Canada 18 1.3%
5 Hong Kong 8 0.6%
6 Netherlands 3 0.2%
7 United Kingdom 2 0.1%
8 1 0.1%
9 Viet Nam 1 0.1%
10 Slovenia 1 0.1%
11 Taiwan 1 0.1%
12 United Arab Emirates 1 0.1%
13 Japan 1 0.1%
14 Malaysia 1 0.1%