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 49.3%
2 United States 23 32.4%
3 Germany 3 4.2%
4 Japan 2 2.8%
5 Republic of Korea 2 2.8%
6 Singapore 2 2.8%
7 Taiwan 1 1.4%
8 Finland 1 1.4%
9 Korea, Republic of 1 1.4%
10 Peru 1 1.4%