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 43 59.7%
2 China 17 23.6%
3 Germany 4 5.6%
4 Netherlands 2 2.8%
5 United Kingdom 2 2.8%
6 Belgium 1 1.4%
7 Taiwan 1 1.4%
8 Macao 1 1.4%
9 France 1 1.4%