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 159 60%
2 United States 57 21.5%
3 Germany 23 8.7%
4 Taiwan 8 3%
5 India 3 1.1%
6 Japan 3 1.1%
7 Ireland 2 0.8%
8 Hungary 2 0.8%
9 Netherlands 2 0.8%
10 Singapore 2 0.8%
11 Canada 1 0.4%
12 Hong Kong 1 0.4%
13 Korea, Republic of 1 0.4%
14 Luxembourg 1 0.4%