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 49 58.3%
2 United States 13 15.5%
3 Germany 12 14.3%
4 Netherlands 3 3.6%
5 Republic of Korea 2 2.4%
6 Slovenia 1 1.2%
7 Spain 1 1.2%
8 United Kingdom 1 1.2%
9 Portugal 1 1.2%
10 Korea, Republic of 1 1.2%