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 14 36.8%
2 United States 9 23.7%
3 Germany 4 10.5%
4 Macao 2 5.3%
5 Singapore 2 5.3%
6 Canada 2 5.3%
7 Australia 2 5.3%
8 Belgium 1 2.6%
9 Taiwan 1 2.6%
10 United Kingdom 1 2.6%