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 106 52.7%
2 United States 48 23.9%
3 Ireland 15 7.5%
4 Netherlands 12 6%
5 Germany 7 3.5%
6 Korea, Republic of 5 2.5%
7 Hong Kong 3 1.5%
8 Canada 2 1%
9 United Kingdom 2 1%
10 Spain 1 0.5%