BPG致力于知识的发现和传播
Total Visits of This Article
2017 | 总访问次数
排名 国家/地区 数量 占比
1 United States 22 30.6%
2 China 16 22.2%
3 Germany 16 22.2%
4 Netherlands 9 12.5%
5 Nigeria 4 5.6%
6 Ukraine 1 1.4%
7 India 1 1.4%
8 Ireland 1 1.4%
9 Korea, Republic of 1 1.4%
10 Lithuania 1 1.4%