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 41 50%
2 China 17 20.7%
3 Germany 10 12.2%
4 Netherlands 7 8.5%
5 Singapore 2 2.4%
6 United Kingdom 1 1.2%
7 Republic of Korea 1 1.2%
8 Japan 1 1.2%
9 Australia 1 1.2%
10 Canada 1 1.2%