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 197 51.4%
2 United States 110 28.7%
3 Canada 36 9.4%
4 Germany 23 6%
5 Singapore 4 1%
6 Russia 3 0.8%
7 Switzerland 2 0.5%
8 Norway 2 0.5%
9 Luxembourg 2 0.5%
10 Macao 1 0.3%
11 Hong Kong 1 0.3%
12 Italy 1 0.3%
13 Japan 1 0.3%