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 27 42.2%
2 China 9 14.1%
3 Canada 8 12.5%
4 Singapore 4 6.2%
5 Tunisia 4 6.2%
6 Thailand 3 4.7%
7 Lao People's Democratic Republic 3 4.7%
8 Malaysia 2 3.1%
9 Germany 2 3.1%
10 Sweden 2 3.1%