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 United States 46 54.1%
2 China 15 17.6%
3 Netherlands 8 9.4%
4 Germany 6 7.1%
5 Finland 3 3.5%
6 France 2 2.4%
7 United Kingdom 2 2.4%
8 Belgium 1 1.2%
9 Ukraine 1 1.2%
10 Italy 1 1.2%