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 147 63.1%
2 United States 36 15.5%
3 Germany 24 10.3%
4 Ireland 10 4.3%
5 Korea, Republic of 5 2.1%
6 Canada 4 1.7%
7 Taiwan 2 0.9%
8 Poland 2 0.9%
9 Singapore 1 0.4%
10 Japan 1 0.4%
11 Hong Kong 1 0.4%