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 137 59.3%
2 United States 43 18.6%
3 Germany 20 8.7%
4 Hong Kong 10 4.3%
5 Japan 4 1.7%
6 Canada 4 1.7%
7 Netherlands 3 1.3%
8 Singapore 2 0.9%
9 Moldova, Republic of 2 0.9%
10 Uzbekistan 2 0.9%
11 Sweden 1 0.4%
12 United Kingdom 1 0.4%
13 Ireland 1 0.4%
14 Italy 1 0.4%