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 292 55.3%
2 United States 125 23.7%
3 Germany 34 6.4%
4 Hong Kong 24 4.5%
5 Canada 18 3.4%
6 Netherlands 12 2.3%
7 Sweden 5 0.9%
8 Italy 4 0.8%
9 Japan 3 0.6%
10 Romania 2 0.4%
11 Taiwan 2 0.4%
12 United Kingdom 2 0.4%
13 Uzbekistan 1 0.2%
14 Viet Nam 1 0.2%
15 Singapore 1 0.2%
16 Ireland 1 0.2%
17 Czech Republic 1 0.2%