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 35 37.6%
2 United States 25 26.9%
3 Germany 18 19.4%
4 Hong Kong 5 5.4%
5 Taiwan 3 3.2%
6 France 2 2.2%
7 Canada 2 2.2%
8 United Kingdom 1 1.1%
9 Netherlands 1 1.1%
10 Portugal 1 1.1%