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 29 50.9%
2 Germany 15 26.3%
3 China 4 7%
4 Brazil 2 3.5%
5 Netherlands 2 3.5%
6 Russia 1 1.8%
7 Italy 1 1.8%
8 Malaysia 1 1.8%
9 Canada 1 1.8%
10 Australia 1 1.8%