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 11 21.6%
2 United States 9 17.6%
3 Canada 7 13.7%
4 Sweden 6 11.8%
5 Hong Kong 5 9.8%
6 Japan 5 9.8%
7 Germany 2 3.9%
8 Spain 2 3.9%
9 Benin 2 3.9%
10 France 1 2%
11 Russia 1 2%