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 17 30.4%
2 United States 15 26.8%
3 Germany 14 25%
4 Netherlands 3 5.4%
5 Japan 2 3.6%
6 Korea, Republic of 1 1.8%
7 Hungary 1 1.8%
8 Portugal 1 1.8%
9 Republic of Korea 1 1.8%
10 Singapore 1 1.8%