BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 China 15 40.5%
2 Slovakia 7 18.9%
3 United States 6 16.2%
4 Italy 3 8.1%
5 United Kingdom 2 5.4%
6 Canada 1 2.7%
7 Netherlands 1 2.7%
8 Germany 1 2.7%
9 Hong Kong 1 2.7%