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 43 51.8%
2 United States 16 19.3%
3 Germany 12 14.5%
4 Netherlands 6 7.2%
5 Republic of Korea 1 1.2%
6 Taiwan 1 1.2%
7 Belgium 1 1.2%
8 Canada 1 1.2%
9 Ireland 1 1.2%
10 Korea, Republic of 1 1.2%