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 258 44.3%
2 United States 239 41.1%
3 Germany 38 6.5%
4 Taiwan 12 2.1%
5 United Kingdom 6 1%
6 Hong Kong 5 0.9%
7 Australia 5 0.9%
8 Canada 4 0.7%
9 Ireland 3 0.5%
10 Japan 3 0.5%
11 France 2 0.3%
12 Romania 2 0.3%
13 Singapore 2 0.3%
14 Sweden 1 0.2%
15 Burundi 1 0.2%
16 Netherlands 1 0.2%