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 280 61.4%
2 United States 92 20.2%
3 Germany 41 9%
4 Hong Kong 13 2.9%
5 Canada 6 1.3%
6 Japan 6 1.3%
7 Russia 6 1.3%
8 United Kingdom 3 0.7%
9 Sweden 2 0.4%
10 Poland 2 0.4%
11 Brazil 2 0.4%
12 India 1 0.2%
13 Taiwan 1 0.2%
14 Singapore 1 0.2%