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 51 41.5%
2 Canada 34 27.6%
3 China 17 13.8%
4 Norway 4 3.3%
5 Australia 3 2.4%
6 Brazil 2 1.6%
7 Germany 2 1.6%
8 Romania 2 1.6%
9 Singapore 2 1.6%
10 Sweden 2 1.6%
11 United Kingdom 1 0.8%
12 Spain 1 0.8%
13 Hong Kong 1 0.8%
14 Philippines 1 0.8%