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 31 43.7%
2 China 13 18.3%
3 Germany 9 12.7%
4 Japan 5 7%
5 Netherlands 5 7%
6 Austria 3 4.2%
7 Republic of Korea 2 2.8%
8 Australia 1 1.4%
9 Ireland 1 1.4%
10 Israel 1 1.4%