BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 China 37 44.6%
2 United States 17 20.5%
3 Germany 12 14.5%
4 Netherlands 7 8.4%
5 India 3 3.6%
6 Taiwan 2 2.4%
7 Romania 2 2.4%
8 Sweden 1 1.2%
9 Switzerland 1 1.2%
10 Hong Kong 1 1.2%