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 204 50%
2 United States 118 28.9%
3 Germany 37 9.1%
4 Canada 29 7.1%
5 Ireland 7 1.7%
6 Korea, Republic of 3 0.7%
7 Hong Kong 3 0.7%
8 Singapore 2 0.5%
9 Taiwan 2 0.5%
10 United Kingdom 1 0.2%
11 Netherlands 1 0.2%
12 Portugal 1 0.2%