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 54 51.4%
2 United States 18 17.1%
3 Germany 14 13.3%
4 Netherlands 8 7.6%
5 Singapore 3 2.9%
6 Hong Kong 3 2.9%
7 Taiwan 2 1.9%
8 United Kingdom 1 1%
9 France 1 1%
10 Australia 1 1%