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 United States 24 31.2%
2 China 23 29.9%
3 Canada 9 11.7%
4 Netherlands 5 6.5%
5 Australia 4 5.2%
6 Italy 3 3.9%
7 Russia 2 2.6%
8 Singapore 2 2.6%
9 Germany 2 2.6%
10 Hong Kong 2 2.6%
11 Japan 1 1.3%