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 31.7%
2 United States 14 22.2%
3 Germany 7 11.1%
4 Netherlands 5 7.9%
5 Singapore 5 7.9%
6 Hong Kong 4 6.3%
7 United Kingdom 2 3.2%
8 France 2 3.2%
9 Australia 2 3.2%
10 Canada 2 3.2%