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 20 30.3%
2 United States 11 16.7%
3 Canada 7 10.6%
4 Japan 6 9.1%
5 Singapore 5 7.6%
6 Germany 4 6.1%
7 Australia 4 6.1%
8 Malaysia 3 4.5%
9 Ghana 2 3%
10 United Kingdom 2 3%
11 Italy 1 1.5%
12 Denmark 1 1.5%