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 23 47.9%
2 Germany 10 20.8%
3 China 5 10.4%
4 Netherlands 3 6.2%
5 India 2 4.2%
6 South Africa 1 2.1%
7 Taiwan 1 2.1%
8 Estonia 1 2.1%
9 1 2.1%
10 Canada 1 2.1%