BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 56 61.5%
2 United States 13 14.3%
3 Germany 7 7.7%
4 France 3 3.3%
5 Canada 3 3.3%
6 Australia 2 2.2%
7 Japan 2 2.2%
8 Netherlands 2 2.2%
9 United Kingdom 2 2.2%
10 Hong Kong 1 1.1%