BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 27 38.6%
2 China 20 28.6%
3 Canada 6 8.6%
4 Australia 4 5.7%
5 Malaysia 4 5.7%
6 Taiwan 3 4.3%
7 United Kingdom 3 4.3%
8 Portugal 1 1.4%
9 Denmark 1 1.4%
10 Hong Kong 1 1.4%