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 162 60%
2 United States 55 20.4%
3 Germany 26 9.6%
4 Pakistan 5 1.9%
5 Taiwan 4 1.5%
6 Korea, Republic of 3 1.1%
7 Netherlands 2 0.7%
8 Hong Kong 2 0.7%
9 France 2 0.7%
10 Australia 2 0.7%
11 Canada 2 0.7%
12 United Kingdom 2 0.7%
13 Sweden 2 0.7%
14 Singapore 1 0.4%