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 34 33.7%
2 United States 26 25.7%
3 Germany 14 13.9%
4 Netherlands 11 10.9%
5 Hong Kong 6 5.9%
6 Taiwan 4 4%
7 France 2 2%
8 Canada 2 2%
9 United Kingdom 1 1%
10 Portugal 1 1%