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 48 64.9%
2 United States 12 16.2%
3 Germany 5 6.8%
4 Australia 3 4.1%
5 Czech Republic 2 2.7%
6 Finland 1 1.4%
7 Hong Kong 1 1.4%
8 Taiwan 1 1.4%
9 United Kingdom 1 1.4%