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 Germany 8 32%
2 China 4 16%
3 Nigeria 4 16%
4 United States 4 16%
5 Palestine, State of 1 4%
6 Singapore 1 4%
7 Taiwan 1 4%
8 Canada 1 4%
9 Netherlands 1 4%