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 China 35 46.1%
2 United States 22 28.9%
3 Germany 9 11.8%
4 Netherlands 5 6.6%
5 Peru 1 1.3%
6 Republic of Korea 1 1.3%
7 Taiwan 1 1.3%
8 United Kingdom 1 1.3%
9 Korea, Republic of 1 1.3%