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 197 60.4%
2 United States 66 20.2%
3 Germany 28 8.6%
4 Hong Kong 8 2.5%
5 Japan 6 1.8%
6 Canada 6 1.8%
7 Ireland 4 1.2%
8 Singapore 4 1.2%
9 United Kingdom 3 0.9%
10 Netherlands 3 0.9%
11 Korea, Republic of 1 0.3%