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 178 61%
2 United States 47 16.1%
3 Germany 34 11.6%
4 Netherlands 8 2.7%
5 Canada 6 2.1%
6 Hong Kong 5 1.7%
7 Japan 3 1%
8 United Kingdom 3 1%
9 Singapore 2 0.7%
10 Sweden 2 0.7%
11 Brazil 2 0.7%
12 Russia 1 0.3%
13 Taiwan 1 0.3%