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 14 29.2%
2 Germany 14 29.2%
3 United States 11 22.9%
4 Romania 3 6.2%
5 Republic of Korea 2 4.2%
6 Belgium 1 2.1%
7 United Kingdom 1 2.1%
8 Ireland 1 2.1%
9 Korea, Republic of 1 2.1%